80 marbles for $4.99 is a better buy as compared with 90 marbles for $5.99
What is comparison in mathematics?
Comparing numbers in math is defined as a process or method in which one can determine whether a number is smaller, greater, or equal to another number according to their values.
Given are 80 marbles for $4.99 and 90 marbles for $5.99.
Using Unitary method -
80 marbles cost → $4.99
1 marble will cost → (4.99/80) = $0.062
90 marbles cost → $5.99
1 marble will cost → (5.99/90) = $0.066
Clearly $0.062 < $0.066
So, 80 marbles for $4.99 is a better buy.
Therefore, 80 marbles for $4.99 is a better buy as compared with 90 marbles for $5.99
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Which of the following equations has a slope of -2 and passes through the point (3,-4)?
Answer:
B
Step-by-step explanation:
y=-2x+2
y=mx+b
m is slope so.here m is -2
y=-2+10.passes through the point (3,-4)
because -4=-2*3+2
-4=-6+2
-4=-4
In the winter, a town has a low of -5°F. In
the summer, the same town has a high of
98°F. What is the difference in temperature?
[? ]°F
Answer:
-5f is lower than summer 98°f
Step-by-step explanation:
n the winter, a town has a low of -5°F. In
the summer, the same town has a high of
98°F. What is the difference in temperature?
Which fractions are equivalent to
-? Check all that apply.
12
Answer:
2/3
24/36
32/48
are all equivalent to 8/12
Answer:
32/48
Step-by-step explanation:
32 divided by 4 is 8
48 divided by 4 is 12
The seventh grade class help an end of the year dance. Of the 300 seventh graders, 240
decided to attend. What percent of the seventh grade class attended the end of the year dance?
Answer:
80 percent
Step-by-step explanation:
Dvide 300 by 240 which gives you 80 percent the amount of students that atended.
Answer:
80%
Step-by-step explanation:
240/300=.8
.8=80%
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It’s a math question :((
Answer:
slope: 3 y-intercept: 9
Step-by-step explanation: 19-10 is 9, and 6-3 is 3 9/3 is 3.
28-19 equals 9. 19-10 is 9, so 9 fills out that blank beside 10.
Answer:
slope is 3 and in the blank goes 1. and y intercepts line at y=1
Two integers a and b have a product of 30 what is the least possible sum of a and b
Answer:
6+5=11
Step-by-step explanation:
6*5=30
Lowest numbers possible
Write the formula for the volume of a cone V = 13π r2 h in terms of h.
Find the height h of a cone with volume V = 32π cm3 and radius r = 4 cm.
Formula:
Height:
Answer:
The answer is D, h=3Vπr2. The height of the cone is 6 cm
Step-by-step explanation:
The Height of the Cone is 6 cm.
What is Volume of Cone?The shape's volume is equal to the product of its area and height. = Height x Base Area = Volume.
The formula for the volume of a cone is V=1/3hπr².
Given:
Volume of Cone= 1/3 πr²h
where r is the radius and h is the height.
Now, if V= 32π cm³ and r= 4 cm
Then, Volume of Cone = 1/3 πr²h
32π = 1/3 π(4)²h
32 = 1/3 (4)²h
32= 1/3 (16)h
h/3 = 2
h= 6cm
Hence, the height is 6 cm.
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CAN SOMEONE PLEASE HELP ME FAST???
Answer:
Graph part: Find where it says each letter on the grph and put in the following numbers:
2 -140
4 -280
9 -630
To plot your points:
1 point: find 2 on the X axis and find 140 on the Y axis, plot a point there. For the next 2 points, do the same thing. Find 4 on the X, go up to 280 on the Y.
Step-by-step explanation:
The question says that there are 70 people in a group. Its then asks who many people would be in 2, 4, and 9 groups. Just muliply to get each answer and put it in the graph.
pls help with the picture above!
Answer:
Distance=y•x
Step-by-step explanation:
You need to multiply the time by the distance to get the total distance e oer hour
Help with slope pleaseee
^^
Help me please ok thank you ._.
Answer:
its ur dad
Step-by-step explanation:
Which number best represents the slope of the graphed line?
A. -2
B. -1/2
C. 1/2
D. 2
Answer: b. -1/2
Step-by-step explanation:
First you need to choose 2 points in the graph
I chose (0,4) and (-2,3)
After chosing 2 points you have to plug them in the slope formula
m= y2-y1/x2-x1
m= 3-4/-2-0
m= -1/-2
Answer:
B. - 1/2
Step-by-step explanation:
Just took the test on edmentum and a got it right
PLEASE HELP THIS IS DUE TODAY
jack and jill are going tubing and it costs $50 for the first 2 hours to rent the tubes and $20 for each additional hour. if they have $100 to spend, at most, how many hours can they rent the tubes?
Step-by-step explanation:
Four and half hour yes omg
Answer:
4 1/2 hours
Step-by-step explanation:
Someone please help me with this I really don’t know it ASAP
Answer:
light blue D-E
Step-by-step explanation:
it is a 180 and leads to F if you continue with the line
yur welcome
Evaluate f(x)+g(x)
f(x)=3x+4 g(x)=6x+1
Answer:
4
Step-by-step explanation:
I took it on the test its 4
DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA DA
Answer:
da de da da da de do re mi fa so la mi AAAAAAAAAAA
Step-by-step explanation:
I can speak the language of the gods xD
Which of the following is considered an asset?
Answer:
b car lone
Step-by-step explanation:
hope it helps
If an automobile travels 42 miles on 3 gallons of gasoline, how far, under the same driving conditions, will the car travel on 4.5 gallons of gasoline?
Answer:
63 hope this helped
Step-by-step explanation:
Which of the following functions best describes this graph
Answer: y=x^2+8x+12
Step-by-step explanation:
After depositing a check from his grandmother for $45, Tim had a balance of $120.63 in his savings account. He then wrote a check to pay for his electric bill. At the end of the week Tim’s final balance was -$150.85. How much money did Tim withdraw?
Answer:
I’m pretty sure he withdrew $271.48
Step-by-step explanation:
rectangular park is 105 yards long and 55 yards wide.
ve the length and width of another rectangular park that has the same perimeter but a larger area.
Answer:
One answer is 100 yards long and 60 yards wide.
Step-by-step explanation:
The area is bigger, but answers vary.
SIMPLE EQUATIONS
81
EXERCISE 4.1
1. Complete the last column of the table.
S.
No.
Equation
Value
Say, whether the Equation
is Satisfied. (Yes/No)
(1)
x + 3 = 0
x=3
x + 3 = 0
r-0
Answer:
Step-by-step explanation:
I think the answer should be
x + 3 = 0
x = 0 - 3
x = - 3
4. Subtract 8pʻq'from-5pʻa.
is the answer 4 ur question
After jogging 4 miles, a runner increases his speed to 6 miles per hour which equation models the total number of miles, d, that he has traveled aftert
hours at the fastest speed?
O d = 4t - 6
O d = 4t + 6
O d = 6 - 4
d = 6 + 4
Answer: 11
Step-by-step explanation:
PLS HELP CAN SOMEONE ANSWER B AND C!!! I NEED THE GRAPHS!!! 2. The restaurant bill you and your friend received was not itemized. You ordered 2 drink refills and the egg
breakfast, for a total of $8.40. Your friend ordered 3 refills and the egg breakfast for $9.35.
(a) Write a system of equations for the situation User for the amount charged for a refill and b for the
amount charged for the egg breakfast.
(b) Graph the equations in the system
(c) Use your graph to estimate how much each item cost.
Answer:
Answer:
(a) The system of equations is:
2r + b = 8.40
3r + b = 9.35
(b) The graph is attached down
(c) By using the graph
The cost of the refill is $0.95
The cost of the egg breakfast is $6.5
Step-by-step explanation:
Let r is the amount charged for a refill and b for the amount charged for the egg breakfast
∵ r is the amount charged for a refill
∵ b is the amount charged for the egg breakfast
∵ You ordered 2 drink refills and the egg breakfast, for a total of $8.40
∴ 2r + b = 8.40 ⇒ (1)
∵ Your friend ordered 3 refills and the egg breakfast for $9.35
∴ 3r + b = 9.35 ⇒ (2)
(a) The system of equations is:
2r + b = 8.40
3r + b = 9.35
(b) The graph is attached down
From the graph
The red line represents equation (1)
The blue line represents equation (2)
The two lines intersected at point (0.95, 6.5)
(c) By using the graph
The cost of the refill is $0.95
The cost of the egg breakfast is $6.5
Please help! A line has a slope of -2 and a y-intercept of -3. Graph the line using the slope and y-intercept. Which of the following points lie on this same line? Check all that apply.
Answer:
2. -1.5, 0
3. -6, 9
5. 3, -9
Step-by-step explanation:
Given parameters:
Slope = -2
y - intercept = -3
Unknown:
The point that lies on the line = ?
Solution:
To do the equation of the line,
y = mx + c
y and x are the coordinates
m is the slope
c is the y -intercept
Input the parameters:
y= -2x -3
The points that lie on the line will conform with the equation:
y + 2x = -3
1. -2, 0
y = 0 and x = -2
0 + (-2)2 = -4
2. -1.5, 0
y = 0 and x = -1.5
0 + 2(-1.5) = -3
3. -6, 9
y = 9, x = -6
9 + 2(-6) = 9 - 12 = -3
4. 2, -3
y = -3 and x = 2
-3 + 2(2) = -3 + 4 = 1
5. 3, -9
y = -9, x = 3
-9 + 2(3) = -9 + 6 = -3
6. -4, 4
y = 4 , x - 4
4 + 2(-4) = 4 - 8 = -4
The boldened coordinates line on the same line.
Look at ASTU on this coordinate grid. Suppose that AS'T'U' is the result of 8 points
a dilation of ASTU with a scale factor of 2. What are the coordinates of
point S?*
6
т
5 4
3.
N
1
1
S
U
-5 -5 -4 -3 -2 -1 0
$54
1
2 3 4 5
6x
به دی د اما
ov
O (4,2)
0 (0,-3)
O (3.4)
O (6,9)
Answer:
(4,2)
Step-by-step explanation:
i multiplied the S values by the scale factor to get the S dash
The coordinates of the point S' after dilation is S' ( 4 , 2 )
What is Dilation?Resizing an item uses a transition called Dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. Dilation transformations ensure that the shape will stay the same and that corresponding angles will be congruent
Given data ,
Let the triangle be represented as ΔSTU
Now , the coordinates of the triangle are
S ( 2 , 1 ) , T ( 4 , 5 ) and U ( 4 , 1 )
Now , the dilation scale factor is k = 2
So , the coordinates of the triangle after the dilation is
S' ( 4 , 2 ) , T' ( 8 , 10 ) and U' ( 8 , 2 )
Hence , the coordinate of S' is S' ( 4 , 2 )
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A triangle with vertices J(3, 0), K(4, 3), and L(6, 0) is rotated clockwise 90° about the origin. What are the new coordinates for J' K' and L' ?
Answer:
The new coordinates of the triangle J'K'L' are J'(0, -3), K'(3, -4), and J'(6, 0)
Step-by-step explanation:
The given coordinates of the triangle JKL are;
J(3, 0), K(4, 3), L(6, 0)
The rotation of the point of a preimage (x, y) by 90° clockwise gives the point of the image after rotation as (y, -x)
Therefore;
The rotation of point J(3, 0) by 90° clockwise gives J'(0, -3)
The rotation of point K(4, 3) by 90° clockwise gives K'(3, -4)
The rotation of point L(6, 0) by 90° clockwise gives J'(6, 0)
The new coordinates of the triangle J'K'L' are J'(0, -3), K'(3, -4), and J'(6, 0)
Simplify the expression
Answer:
33
Step-by-step explanation:
You have to do the problem in the brackets and then multiply by 3
Answer:
33
Step-by-step explanation:
{(3+5)x2-5}x3
{8x2-5}x3
{16-5}x3
{11}x3
33
what is the slope of a line perpendicular to the line whose equation is 2x-y=-6
Answer:
m⊥ = –½
Step-by-step explanation:
First, put the given equation in slope-intercept form:
2x – y = –6
–y = –2x – 6
y = 2x + 6
The slope of the line perpendicular to the line given will be the negative reciprocal of the given line's slope, so:
If m = 2, then m⊥ = its negative reciprocal:
m · –1
2 · –1
–2 → –½
So, the negative reciprocal of 2 is –½.
