Assuming that one snap cube represents one milliliter (ml) of paint, we can use five red snap cubes to represent 5 ml of red paint and three blue snap cubes to represent 3 ml of blue paint. We can arrange these snap cubes in a row to represent the recipe:
RRRRR BBB
This indicates that we mix 5 ml of red paint with 3 ml of blue paint to create the maroon paint.
To draw a sketch of the snap-cube representation of the maroon paint, we can combine the red and blue snap cubes into a single row:
RRRRR BBB
This gives us a row of eight snap cubes, which represents the maroon paint. Visually, the maroon paint will appear as a blend of red and blue, with a darker, richer hue than either color alone.
Each snap cube represents one milliliter (ml) of paint. Therefore, in this representation, each snap cube represents a fixed amount of paint, regardless of the color. In other words, each cube represents a unit of volume, rather than a unit of color or pigment.
if there are 40% math's books in school library containing 1800 books in total find the number of the math's books
Answer: 720
Step-by-step explanation: 1800 x 40%
Answer:
720 math books
Step-by-step explanation:
1800×40%= 720
there are 720 math books
Marcia makes jewelry to sell at the artists' fair. She spends $120 to rent a stall at
the fair for the day and each piece of jewelry costs Marcia $15 in materials.
Which equation would compute the number of pieces of jewelry Marcia must sell at
the artists' fair such that the average cost per piece of jewelry would be $20?
110
The equation that can be used to compute the number of pieces of jewellery is ($120 + $15q)/q = $20 .
What is the equation?
Average cost is total cost divided by the quantity of jewellery sold.
Average cost = total cost / quantity
Total cost is the sum of fixed cost and variable cost.
Total cost = fixed cost + variable cost
The fixed cost is the cost of renting the stall. The variable cost is the cost of the materials.
Total cost = $120 + ($15 x q)
T = $120 + $15q
Average cost = ($120 + $15q)/q = $20
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How do i solve this?
RSQ= 126 degrees
both angles are cooresponding angels therefore
5x+86=10x+46
86-46=10x-5x
40=5x
x=8
substitute
10(x)+46
10(8)+46
80+46
126
How much interest has accrued after one month at a rate of 15. 5%? Use the formula I=Prt. *
A $19. 24
B $18. 71
C $18. 81
The interest accrued after one month at a rate of 15.5% on a principal amount of $1,000 is $12.92.
To use the formula I=Prt to calculate the interest accrued after one month at a rate of 15.5%, we need to know the principal amount (P) and the time period (t) in years.
Assuming that the principal amount is $1,000, and the time period is one month, which is equivalent to 1/12 of a year, we can calculate the interest as follows:
[tex]I = Prt[/tex]
[tex]I[/tex] [tex]= 1000 x 0.155 x (1/12)[/tex]
[tex]I = $12.92[/tex]
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Camden and violet are reading the same book. at the beginning of the month, camden was on page 18 and violet was on page 39. camden will read 11 pages per day and violet will read 8 pages per day. let c represent the page of the book that camden is on at the end of t days into the month. write an equation for each situation, in terms of t. and determine whether camden or violet is farther along in 2 days.
For Camden the equation is c = 18 + 11t and for Violet the equation is v = 39 + 8t. After 2 days, Camden will be on page 40 and Violet will be on page 55.
Let's represent the situation with two equations, one for Camden (c) and one for Violet (v), using the given information and the variable t for the number of days.
Camden:
At the beginning of the month, Camden was on page 18 and will read 11 pages per day. So, his equation will be:
c = 18 + 11t
Violet:
At the beginning of the month, Violet was on page 39 and will read 8 pages per day. So, her equation will be:
v = 39 + 8t
Now, we need to determine who is farther along in the book after 2 days. To do this, we will substitute t = 2 into both equations.
Camden's equation (c):
c = 18 + 11(2)
c = 18 + 22
c = 40
Violet's equation (v):
v = 39 + 8(2)
v = 39 + 16
v = 55
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Determine if the expression zx^3/9-x^3 is a polynomial or not. if it is a polynomial, state the type and degree of the polynomial.
This expression is not a polynomial, and it doesn't have a type or degree.
The expression zx^3/9-x^3 can be simplified as:
zx^3/(9-x^3)
This expression is not a polynomial because it contains a variable (x) in the denominator, which makes it a rational expression.
A polynomial is an expression of one or more terms involving only constants and variables raised to positive integer powers, with no variables in the denominators.
Therefore, this expression is not a polynomial, and it doesn't have a type or degree.
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Question content area top
Part 1
A riverboat travels 69 km downstream in 3 hours. It travels 76 km upstream in 4 hours. Find the speed of the boat and the speed of the stream.
The speed of the boat is 21 km/h and the speed of the stream is 2 km/h.
Let z be a random variable with a standard normal distribution. Find the indicated probability. (Enter a number. Round your answer to four decimal places. )
P(z ≥ 1. 41) =
If you let z be a random variable with a standard normal distribution, the indicated probability is 0.0793. So, the probability P(z ≥ 1.41) = 0.0793
To find the probability P(z ≥ 1.41) for a standard normal distribution, you can use a Z-table or calculator to find the area to the right of z = 1.41.
Using a Z-table or calculator, you will find the value of P(z ≥ 1.41) is approximately 0.0793. So, the probability P(z ≥ 1.41) = 0.0793. Remember to round your answer to four decimal places.
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Use your mouse or finger to split the
trapezoid into two triangles and a rectangle.
I ready
Trapezoids can be split into two triangles and a rectangle.
Trapezoid is also known as a trapezium which is a closed shape having 4 sides with one pair of parallel sides. Trapezium is quadrilateral with 4 sides The parallel sides of a trapezium are known as the bases, and its non-parallel sides are called legs. A trapezium can also have parallel legs. The parallel sides can be horizontal, vertical, or slanting. Few real-life objects example of trapezium is a lamp, popcorn box etc.
A trapezoid consists of two triangles and one rectangle figure shows how can we cut the trapezium to split the trapezium.
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If the minimum perimeter of a quadrilateral is 200cm, what is the maximum area of the quadrilateral
guesses will be reported
first correct answer gets brainliest <3
The maximum area of the quadrilateral is achieved when it is a square with a side length of 50cm, resulting in an area of 2500cm².
This is because a square has equal sides and equal angles,
resulting in the most efficient use of the perimeter to enclose the maximum area.
To see why, consider a rectangle with a perimeter of 200cm.
If the rectangle is long and thin, with one side much longer than the others,
then it will have a smaller area than a square with the same perimeter.
This is because the longer sides of the rectangle will be less effective at enclosing area than the shorter sides.
Hence, The maximum area of a quadrilateral with a minimum perimeter of 200cm is achieved when the quadrilateral is a square.
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5. A salesman bought a computer from a manufacturer. The salesman then sold the computer for
$15 600 making a profit of 25%. Unfortunately, he suffered a 5% loss due to damages when
assembling
a. What was his actual profit earnings? (10 marks)
The salesman's actual profit earnings after suffering a 5% loss due to damages when assembling the computer is $14,820.
Let's first calculate the original cost price of the computer to the salesman. We know that the salesman sold the computer for $15,600 and made a profit of 25%, which means that the selling price is 125% of the cost price.
Let the cost price of the computer be x.
Selling price = 125% of cost price
$15,600 = 1.25x
Solving for x, we get:
x = $12,480
So, the salesman's cost price of the computer was $12,480.
Now, the salesman suffered a loss of 5% due to damages when assembling the computer.
Loss = 5% of cost price
Loss = 5% of $12,480
Loss = $624
So, the actual earnings of the salesman after the loss is: $15,600 - $624 = $14,820.
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5)
The population of Sanibel, Florida can
be modeled by P = 6191 · 1. 05t,
where t is the number of years since
2016. What was the population in
2016? What percent did the
population increase by each year?
The population increased by a percentage of 5%.
The population of Sanibel, Florida in 2016 can be determined using the given population model P = 6191 * 1.05^t, where t represents the number of years since 2016. To find the population in 2016, we set t to 0 since there are 0 years since 2016.
Step 1: Set t to 0 in the equation:
P = 6191 * 1.05^0
Step 2: Calculate the population P:
P = 6191 * 1
P = 6191
So, the population in Sanibel, Florida in 2016 was 6,191.
Regarding the percent population increase each year, the given model uses an exponential growth formula with a constant factor of 1.05. The factor (1.05) represents a 5% increase in the population each year.
In summary, the population in Sanibel, Florida in 2016 was 6,191, and the population increases by 5% each year. This exponential growth model demonstrates how the population continues to grow at a steady rate, contributing to the overall population increase in the area.
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π8
radians is the same as
degrees.
Answer:
π/8 radians is the same as 22.5°
Step-by-step explanation
π corresponds to 180 degrees.
so
180 : 8 = 22.5°
Can I have help with this question, Please?
"Write an equation for the ellipse."
Center: (1, -3)
The equation of the ellipse with center (1, -3), and a semi major axis of 4, and a semi minor axis of 3 is; (x - 1)²/4² + (y + 3)²/3²
What is the standard form of the equation of an ellipse?The standard form equation of an ellipse can be presented as follows;
(x - h)²/a² + (y - k)²/b² = 1
Where;
(h, k) = The coordinates of the center of the ellipse.
The length of the semi major axis = a
Length of the semi minor axis = b
The center of the specified ellipse is; (h, k) = (1, -3)
The semi major axis = 4
The length of the semi minor axis = 3
The equation of the ellipse is therefore;
(x - 1)²/4² + (y - (-3))²/3² = 1
(x - 1)²/4² + (y + 3)²/3² = 1
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A standard number cube is rolled to play a certain board game. What is the Sample Space? Use proper notation as necessary and no extra spaces.
Answer: 1.3
Step-by-step explanation:
Two sides of a parallelogram are 9. 5 feet and 6. 1 feet. The measure of the angle between these sides is 20°. Find the area of the parallelogram to the nearest 10th of a square foot
The area of the parallelogram is approximately 21.2 square feet, rounded to the nearest tenth of a square foot.
To find the area of a parallelogram, we need to multiply the base by the height. In this case, the two sides given (9.5 feet and 6.1 feet) are the base and height respectively, because they are perpendicular.
To find the area, we first need to find the length of the other two sides. Since a parallelogram has opposite sides that are equal in length, we know that the other two sides are also 9.5 feet and 6.1 feet.
Next, we can use the given angle (20°) to find the height of the parallelogram. We can use trigonometry, specifically the tangent function, to do this:
tan(20°) = height / 6.1 feet
height = 6.1 feet * tan(20°)
height ≈ 2.23 feet
Now we can find the area:
area = base * height
area = 9.5 feet * 2.23 feet
area ≈ 21.185 square feet
Rounding to the nearest tenth of a square foot, the area is approximately 21.2 square feet.
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A plane rose from take-off and flew at an angle of 11° with the ground. When it reached an
altitude of 500 feet, what was the horizontal distance the plane had flown?
A plane rose from take-off and flew at an angle of 11° with the ground, the horizontal distance the plane had flown when it reached an altitude of 500 feet is approximately 2755.3 feet.
To solve this problem, we can use trigonometry. We know that the angle between the ground and the plane's path is 11°, and the altitude of the plane is 500 feet. Let x be the horizontal distance the plane has flown.
We can use the tangent function, which is defined as the ratio of the opposite side to the adjacent side of a right triangle, to find x. In this case, the opposite side is the altitude (500 feet) and the adjacent side is x. So we have:
tan(11°) = 500/x
To solve for x, we can multiply both sides by x and then divide by tan(11°):
x = 500 / tan(11°)
Using a calculator, we get:
x ≈ 2755.3 feet
Therefore, the horizontal distance the plane had flown when it reached an altitude of 500 feet is approximately 2755.3 feet.
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At the beginning of the summer, a camp has 540 campers and 36
counselors. part a: by midsummer, an additional 0 campers join the camp. how many additional counselors are needed to keep the same ratio of campers to counselors? write a proportion and solve. part b: by the end of the summer, 2/3 of the campers plan to come back next year. how many campers can they expect back next year? write a proportion and solve. part c: how many counselors will they need next year for the estimated returning campers? write a proportion and solve.
The camp would need 24 counselors for the estimated returning campers.
Midsummer is typically around the middle of the summer season, which is usually around the end of July. In this scenario, at the beginning of the summer, there are 540 campers and 36 counselors at a camp.
Part a asks us to determine how many additional counselors are needed to maintain the same ratio of campers to counselors if 0 additional campers join the camp by midsummer.
To solve this problem, we can set up a proportion:
540 campers / 36 counselors = (540 + 0) campers / x counselors
We can simplify this proportion by cross-multiplying and solving for x:
540x = 36(540 + 0)
x = 36(540 + 0) / 540
x = 36
Therefore, the camp would need an additional 36 counselors to maintain the same ratio of campers to counselors if no additional campers joined by midsummer.
Part b asks us to determine how many campers can be expected to return the following year if 2/3 of the current campers plan to come back. We can set up a proportion for this problem as well:
2/3 (current campers) = x (expected returning campers) / 540 (current campers)
We can solve for x by cross-multiplying and simplifying:
2/3 (540) = x
x = 360
Therefore, the camp can expect around 360 campers to return the following year.
Part c asks us to determine how many counselors will be needed for the estimated returning campers. We can set up a proportion once again:
540 (current campers) / 36 (current counselors) = 360 (expected returning campers) / x (needed counselors)
We can solve for x by cross-multiplying and simplifying:
540x = 36(360)
x = 24
Therefore, the camp would need 24 counselors for the estimated returning campers.
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Consider triangle ABC with vertices A(0,0), B (0,6), and C (4,0). The image of triangle ABC after a dilation has vertices A'(0,0), B' (0,21), and C' (14,0).
What is the scale factor of the dilation?
k = ?
Answer:
k=0.3
Step-by-step explanation:
Let's call the length of each of the other two sides x. Since the triangle is isosceles, it has two sides of equal length. Therefore, the perimeter of the triangle can be expressed as 6 + x + x Simplifying this equation, we get 2x + 6 We know that the perimeter is 22 cm so we can set up an equation and solve for x. 22 = 2x + 6 Subtracting 6 from both sides, we get 16 = 2x Dividing both sides by 2, we get x=8
11. On a basketball court, the free throw lane is marked off geometrically. This area of the court is called the
key and is topped by a semicircle that has a diameter of 12 feet. Find the arc length of the semicircle to the
nearest foot. Find the area of the semicircle to the nearest square foot.
The area of the semicircle is approximately 57 square feet.
The arc length of the semicircle can be found using the formula:
arc length = (θ/360) × 2πr
where θ is the angle in degrees, r is the radius, and π is approximately 3.14.
In this case, the diameter of the semicircle is 12 feet, so the radius is half of that, or 6 feet. The angle of the semicircle is 180 degrees, since it is a semicircle. Plugging these values into the formula, we get:
arc length = (180/360) × 2π(6) ≈ 18.85 feet
Therefore, the arc length of the semicircle is approximately 19 feet.
To find the area of the semicircle, we can use the formula:
area = (πr^2)/2
Plugging in the value of the radius from before, we get:
area = (π(6^2))/2 ≈ 56.55 square feet
Therefore, the area of the semicircle is approximately 57 square feet.
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PLSS HELPP!! The diagram shown is two intersecting lines. The measure of ∠2 is 29 degrees.
(a) What is the measure of ∠4? how do you know? Explain your answer in complete sentences.
(b) Suppose the measure of ∠3 can be represented by (3x - 8). What equation can be written to solve for the value of x?
(c) What is the value of x? show all work
The measure of ∠4 is 151°.
The equation that can be used to solve for the value of x is: 3x - 8 = 151°
The value of x is 53.
What is the measure of ∠4?(a) The measure of ∠4 is found as follows:
∠2 + ∠4 = 180° ( sum of angles on a straight line)
However, ∠2 = 29°
29° + ∠4 = 180°
∠4 = 180° - 29°
∠4 = 151°
(b) The equation that can be used to solve for the value of x is found as follows:
∠3 = ∠4 ( vertical angles are equal)
Substituting for ∠3 = 3x - 8 and ∠4 = 151°,
3x - 8 = 151°
(c) The value of x is detremined as follows:
3x - 8 = 151°
3x = 159°
x = 53
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The price of a shirt after 25% discount is R480 calculate the original price of the shirt
discount amount= CP-Disount percentage
or,480=CP-25/100
or480×100+25 =CP
48025 is the original price of shirt
This mysterious hand went to the mall and saw a massage chair
that he would have to take a loan out to purchase. The total of the
loan was $6600. The bank said that he could get a simple interest
rate of 8% for 5 years. What is the total amount that the mysterious
hand will pay for the chair?
Since the loan is at a simple interest rate of 8% for 5 years, the total amount that the mysterious hand will pay is:
Total amount = Principal + Interest
where Principal is the initial amount of the loan, and Interest is the amount of interest charged on the loan.
The interest charged on the loan can be calculated using the simple interest formula:
Interest = Principal x Rate x Time
where Rate is the interest rate per year, and Time is the time period in years.
Plugging in the given values, we get:
Interest = 6600 x 0.08 x 5 = 2640
So the total amount that the mysterious hand will pay is:
Total amount = 6600 + 2640 = 9240
Therefore, the total amount that the mysterious hand will pay for the massage chair is $9,240.
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The likelihood that a child will attend a live musical performance can be modeled by
q = 0.01(0.0005x2 + 0.38x + 35) (15 ≤ x ≤ 100).
Here, q is the fraction of children with annual household income x thousand dollars who will attend a live musical performance during the year. Compute the income elasticity of demand E at an income level of $30,000. (Round your answer to two significant digits.)
E =
Interpret the result.
At a family income level of $_______ , the fraction of children attending a live musical performance is increasing by ________% per 1% increase in household income.
E = 0.01(0.0005(30)^2 + 0.38(30) + 35)(2*0.0005(30) + 0.38) ≈ 0.63
Interpretation: The income elasticity of demand is 0.63, which means that for every 1% increase in household income, the fraction of children attending a live musical performance increases by 0.63%.
At a family income level of $30,000, the fraction of children attending a live musical performance is increasing by 0.63% per 1% increase in household income.
To compute the income elasticity of demand E at an income level of $30,000, we need to find the derivative of q with respect to x, and then evaluate it at x=30. The derivative of q with respect to x is:
dq/dx = 0.01(0.001x + 0.38)
Now, let's evaluate this derivative at x=30:
dq/dx = 0.01(0.001(30) + 0.38) = 0.004
To calculate the income elasticity of demand E, we use the formula:
E = (dq/dx)(x/q)
First, let's find q at x=30:
q = 0.01(0.0005(30)^2 + 0.38(30) + 35) = 0.178
Now, we can find E:
E = (0.004)(30/0.178) ≈ 0.67
Interpret the result:
At a family income level of $30,000, the fraction of children attending a live musical performance is increasing by approximately 67% per 1% increase in household income.
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Explain why a runner completes a 6.2 mi race in 32 min , then he must be running 11m/hr at the entire race
The runner's average speed is approximately 11.63 mph, which is slightly faster than 11 mph. So, the runner doesn't maintain exactly 11 mph throughout the entire race, but they are close.
If a runner completes a 6.2 mile race in 32 minutes, we can calculate their average speed by dividing the total distance by the total time.
6.2 miles ÷ 32 minutes = 0.194 miles per minute
To convert this to miles per hour, we need to multiply by 60 (the number of minutes in an hour):
0.194 miles per minute x 60 minutes = 11.63 miles per hour
So the runner must be running at an average speed of 11.64 miles per hour throughout the entire race in order to complete it in 32 minutes. This is an impressive pace and shows that the runner is very fit and capable of sustaining a fast speed for a relatively long distance.
A runner completes a 6.2-mile race in 32 minutes, and we are to determine if they maintain an 11 mph pace throughout the race. To do this, we need to convert the race time to hours and then divide the race distance by the time.
First, convert 32 minutes to hours:
32 minutes / 60 minutes/hour = 0.5333 hours
Next, calculate the average speed:
6.2 miles / 0.5333 hours ≈ 11.63 mph
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A child lifts a box up from the floor. The child then carries the box with a constant speed to the other side of the room and puts the box down. How much work does he do on the box while walking across the floor at constant speed? Your answer: 0 J More than 0 J More information is needed to determine the answer
0 J. When the child carries the box at a constant speed, the net force on the box is zero because there is no acceleration. Therefore, the work done by the child on the box is zero. So, the correct option is 0 J.
To determine the amount of work done by the child while walking across the floor at a constant speed, we need to consider the following terms: work, force, and displacement.
Work is the amount of energy transferred when a force is applied over a certain distance. It is calculated as:
Work = Force x Distance x cos(θ)
where Force is the applied force, Distance is the displacement, and θ is the angle between the force and displacement vectors.
When the child carries the box with a constant speed across the room, the force applied is equal to the gravitational force acting on the box (i.e., the weight of the box). However, since the force and displacement are in different directions (the force is acting vertically, while the displacement is horizontal), the angle between the force and displacement is 90 degrees.
Now, we know that cos(90°) = 0. Thus,
Work = Force x Distance x cos(90°) = Force x Distance x 0 = 0 J
So, the work done by the child on the box while walking across the floor at constant speed is 0 J.
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Suppose the area of a trapezoid is 126 yd?. if the bases of the trapezoid are 17 yd and 11 yd long, what is the height?
a 4.5 yd
b. 9 yd
c. 2.25 yd
d. 18 yd
The height of the trapezoid is 9 yards. Therefore, the correct answer is option b. 9 yd.
To find the height of the trapezoid with the given area and base lengths, we will use the formula for the area of a trapezoid:
Area = (1/2) * (base1 + base2) * height
Here, the area is given as 126 square yards, base1 is 17 yards, and base2 is 11 yards. We need to find the height.
1. Substitute the given values into the formula:
126 = (1/2) * (17 + 11) * height
2. Simplify the equation:
126 = (1/2) * 28 * height
3. To isolate the height, divide both sides by (1/2) * 28:
height = 126 / ((1/2) * 28)
4. Calculate the result:
height = 126 / 14
height = 9
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If x=2, y=4,m=-1 and n=3, find the value of x^m+n * y^n-m/x^m-n * y^n+m
Answer:
1024
Step-by-step explanation:
I hope everything I wrote is clear, I really need to sharpen my pencil oof
Select the correct answer.
Which is the minimum or maximum value of the given function?
of
44 N₂
O A.
OB.
O.C. The function has a minimum value of -4.
OD. The function has a maximum value of -4.
The function has a minimum value of -3.
The function has a maximum value of -3.
Answer:
C
Step-by-step explanation:
The lowest point on the graph on the y-axis is -4
Given the following practical problem, what is the slope of the linear function?
Homer walked to school every day. He walked at a pace of 4 miles per hour
The slope of the linear function representing Homer's walking pace is 4 miles per hour.
How can the slope of Homer's linear function be determined?In the given practical problem, we are told that Homer walked to school at a pace of 4 miles per hour. The slope of the linear function can be determined by considering the relationship between the distance he walked and the time it took.
In this case, the slope represents the rate of change of distance with respect to time, which is equal to the speed at which Homer is walking. Since Homer's pace is given as 4 miles per hour, the slope of the linear function representing his distance as a function of time would be 4.
Therefore, the slope of the linear function in this practical problem is 4, indicating that for every hour that passes, Homer walks 4 miles.
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