Angela bought two pairs of shoes for a total of $138$ The difference in the price of shoes was $42. How much was the more expensive pair of shoes? Use systems of equations to solve. You must use substitution to solve
Answer:
$90
Step-by-step explanation:
Variable x = Less Expensive Shoe
Variable y = More Expensive Shoe
Set up equations:
x + y = 138
x + 42 = y
The problem says to use substitution to solve, meaning we must substitute one variable for a different value. I will substitute variable y in the first equation for x + 42 as this equals y in the second equation.
x + x + 42 = 138
Combine like terms
2x + 42 = 138
Subtract both sides by 42 to isolate variable x
2x = 96
Divide both sides by 2 to isolate variable x
x = 48
Substitute variable x for 48 and solve for y. I will use the second equation for this.
48 + 42 = y
Combine like terms
90 = y
I defined y as the more expensive pair of shoes. Since the problem only asks for the price of the more expensive shoes, the answer is $90.
21
х
15
X
(Round to the nearest tenth)
Answer:
that would be 6
x = 6
Step-by-step explanation:
Find the 59th term of the arithmetic sequence 26, 17, 8, ...
Answer:
-496
Step-by-step explanation:
it's right :)
Write the quadratic equation in sandard form and then choose the value of "b."
(2x-1)(x+5)=0
Priscilla is on her school’s swim team. Her coach has noted the number of laps Priscilla and five of her teammates can swim without stopping: 5, 4, 6, 3, 7, 5. Help Priscilla summarize this data.
Answer:
Mean: 5, Median: 5, Mode: 5, Range: 4
Step-by-step explanation:
Mean: 5
5 + 4 + 6 + 3 + 7 + 5 = 30
30/6 = 5
Median: 5
3, 4, 5, 5, 6, 7,
Mode: 5
3, 4, 5, 5, 6, 7
2 fives
Range: 4
7 - 3 = 4
which of the following is equivalent to 2:1
Answer:
use m a t h w a y
Step-by-step explanation:
put it all together and they will give you opitions
Which number best represents the probability that an event is very unlikely to occur?
A) 1.25
B) 0.50
C 0.97
D) 0.05
Helpppp fastttt
Answer is in a photo. I can only upload it to a file hosting service. link below!
bit.[tex]^{}[/tex]ly/3a8Nt8n
Write an explicit formula for an, the n^th term of the sequence 22, 20, 18, ....
Answer:
[tex]a_n=a+(n-1)d[/tex]
Step-by-step explanation:
The given sequence is 22, 20, 18, ...
We need to find the explicit formula for an.
First term is 22
Second term = 20
Third term = 18
We can write the formula as :
[tex]a_n=a+(n-1)d[/tex]
Where
a is 22
d is common difference = 20-22 = -2
Forth term will be :
[tex]a_4=22+(4-1)(-2)\\\\=22-6\\\\=16[/tex]
Hence, the formula is [tex]a_n=a+(n-1)d[/tex].
I need help if you get it right I will mark you as BRAINLEST
Answer:
C
Step-by-step explanation:
50 - (14 + 12 +2(5) + 2(2) + 3)
Answer:
50 - (14 + 12 +2(5) + 2(2) + 3)
solve the brackets first
50 - (14 + 12 + 10 + 4 + 3)
50 - (14 + 12 +2(5) + 2(2) + 3)
50- 43
7
3. State if each statement is correct. If it is not correct, then fix the mistake.
For three problems explanation and work needed
SOON ASP!!!! please.
Answer:
All are incorrect
Step-by-step explanation:
Required
Determine which is correct or not
[tex](a)\ 2x * 2x = 4x[/tex]
This is incorrect because:
[tex]2x * 2x = 2 * 2 * x*x[/tex]
[tex]2x * 2x = 4x^2[/tex] ---- fixed
[tex](b)\ 3x^3 * 3x^3 = 9x^9[/tex]
This is incorrect because:
[tex]3x^3 * 3x^3 = 3 * 3 * x^3 * x^3[/tex]
[tex]3x^3 * 3x^3 = 9x^(3+3)[/tex]
[tex]3x^3 * 3x^3 = 9x^6[/tex] ---- fixed
[tex](c)\ 4x(4x + 5) =8x + 5[/tex]
This is incorrect because:
[tex]4x(4x + 5) =4x * 4x + 4x * 5[/tex]
[tex]4x(4x + 5) =16x^2 + 20x[/tex] ---- fixed
[tex](2/3)^{3}[/tex]
Answer:
[tex]\frac{8}{27}[/tex]
Step-by-step explanation:
[tex](\frac{2}{3} )^3 = \frac{2^3}{3^3} = \frac{2 \times 2 \times 2}{3 \times 3 \times 3} = \frac{8}{27}[/tex]
What’s the area of the figure?
What is the surface area of this square pyramid?
Answer:
336 m squared
Step-by-step explanation:
To do this we can first find the area of one face of the prism and multiply it by all the other triangular faces
(4*12)*4=192
then can find the area of the square underneath
12*12=144
then add them together
192+144=226
Find tan 0.
(Marking brainliest if correct)
8/17
15/17
15/8
8/15
Answer:
15/8
Step-by-step explanation:
Assuming you mean tan theta
Tan(theta) = opposite/adjacent
We know the adjacent side is 8 so the bottom of the fraction must also be 8
C: 15/8 is the only option that fits this criteria
The value of tangent of the angle θ, i.e., tan θ = 15/8.
Hence the correct option is c.
Given is a right triangle, with base = 8 units and the hypotenuse is 17 units,
The angle θ which is between the base and the hypotenuse,
We need to find the value of tangent of the angle θ, i.e., tan θ.
To find the value of tangent (tan) of the angle θ, we can use the definition of tangent in a right triangle.
The tangent of an angle in a right triangle is equal to the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle.
In this case, the base of the triangle is given as 8 units, and the hypotenuse is given as 17 units.
To find the length of the side opposite θ, we can use the Pythagorean theorem.
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.
Using this theorem, we can calculate the length of the side opposite θ:
(side opposite θ)² + (base)² = (hypotenuse)²
(side opposite θ)² + 8² = 17²
(side opposite θ)² + 64 = 289
(side opposite θ)² = 289 - 64
(side opposite θ)² = 225
side opposite θ = √225
side opposite θ = 15 units
Now that we have the lengths of the side opposite θ and the side adjacent to θ, we can calculate the tangent of the angle θ:
tan θ = (side opposite θ) / (base)
tan θ = 15 / 8
Therefore, the value of tangent (tan) of the angle θ is 15/8.
Learn more about trigonometric function click;
brainly.com/question/25618616
#SPJ4
Can someone please help me :(
Answer:
3 ^7
Step-by-step explanation:
7 goes in the box
you could do 5 + 2 and that is 7
Answer:
pretty sure you're supposed to put 7 in the box bc when multiplying numbers with exponents you add the exponents
Step-by-step explanation:
sorry if I'm mistaken
Kristy rides 6 miles on her bike in 40 mins. Jax rides his bike 4 miles in 30 mins. Drag the tiles to complete the ratio tables. Tiles may be used once, more than once, or not at all
Answer:
12
Step-by-step explanation:
Answer:
Jax 4,8,12,16,20
And the last box is 60
Step-by-step explanation:
Each student in Mr.Carey’s class donated 15$ to a charity. There are 24 students in the class which expression could have been used to calculate the total amount donated?
a laptop has listed a price of $807.99 before tax if the sales tax rate is 8.75% find the total cost of the laptop with the sales tax include round your answer to the nearest cent as necessary
Answer:
Step-by-step explanation:
70.699125
plzzzz help meeeeeeeeeeee
(x^2)+8x+12=0
i need help with this one
Answer:
x1=-6, x2=-2
Step-by-step explanation:
Answer:
this is the answer hope it helps
Help PleSssssssssssssssssssssssssssssssszsss
Answer:
I think the answer is 5 because on the top it says 5 miles is about 8km but I'm not positive
The steps below show the incomplete solution to find the value of x for the equation
5x − 2x − 3 = −2 + 15:
Step 1: 5x − 2x − 3 = −2 + 15
Step 2: 5x − 2x − 3 = 13
Step 3: 3x − 3 = 13
Which of these is most likely the next step?
3x = 16
3x = 10
3x = 39
3x = 3
The most likely step would be choice 1: 3x = 16 because in step 3, you should add 3 on both sides. So, 3's would cancel out on the left side and you solve for 13 + 3 = 16. Thus, the answer would be 3x - 16. Hope this helps :)
Tiffany catches a fish thats weighs 0.7 lbs. Frank catches a fish that weighs 0.6 times as much as tiffanys fish. How many pounds does Franks fish weigh? Explain how you got your answer using the grid.
Answer:
Franks fish weighs .42 lbs
Step-by-step explanation:
.7 * .6 = .42
what three terms in geometry are undefined terms
Answer:
In Geometry, we have several undefined terms: point, line and plane. From these three undefined terms, all other terms in Geometry can be defined.
Step-by-step explanation:
hope i helped plz mark me brainlest;(
Answer:
point, line and plane.
Step-by-step explanation:
all other terms in Geometry can be defined.
The cost of a barrel of beans, b, fluctuates by 17% in both directions during a three-month period. Match each verbal description of the high and low cost of a barrel of beans with all
Answer:
b is increased by 17% : A and E
b is decreased by 17%: H and J
Step-by-step explanation: took the test
You roll a pair of six-sided number cubes, numbered 1 through 6. What is the probability of rolling two odd numbers? (Enter your probability as a fraction
Answer:
1/4 or 25%
Step-by-step explanation:
The probability for rolling an odd number is 50% or [tex]\frac{1}{2}[/tex] because there are 3 odd numbers, (1, 3, 5) and 6 total outcomes (1, 2, 3, 4, 5, 6). [tex]\frac{3}{6} =\frac{1}{2}[/tex]
The probability for rolling two odd numbers in a row is
[tex]\frac{1}{2} *\frac{1}{2} =\frac{1}{4}[/tex]
So, the probability of rolling an odd number twice is 25% or [tex]\frac{1}{4}[/tex].
A pair of shoes is on sale for $66.00. This is 75% of the original price. What was the original price?
Answer:
$88.00
Step-by-step explanation:
66=3/4x
66/.75=66*4/3=88
NO LINKS
If x = -3, then which inequality is true?
F. -5x + 2 ≤ 12
G. 3x – 7 ≥ −16
H. 14 + 2x < 5
J. 1/2 x + 6 > 11
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A speed rate….=constant of proportionality
A number, k……=unit rate
A ratio…………….=slope
Answer:
Step-by-step explanation:
A speed rate = constant of proportionality
A number, k = unit rate
A ratio = slope
