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rosijanka [135]
3 years ago
9

7EE2 7. In August, Cory begins school shopping for his triplet daughters. One day, he bought 3 packages of socks for $8 each and

3 pairs of shoes for d dollars each. Which pair of expressions represent the total amount Cory spent
Mathematics
1 answer:
NeTakaya3 years ago
4 0

Answer:

3(8) + 3d

24+3d

Step-by-step explanation:

I am not sure which two answer choices you have provided for you but these two expressions work for this problem

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The ratio of Luke's age to Jack's age is 3:2. If Luke is 36, how old is Jack?
melamori03 [73]

Answer:

Jack is 24

Step-by-step explanation:

Luke : jack

3            2

We know like is 36

3*12 = 36, so we need to multiply by 12

Luke : jack

3*12     2*12

36          24

8 0
3 years ago
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I need help with this problem.
raketka [301]
Pre image
A:3,0
B:1,-2
C:3,-5
D:7,-1

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A:9,0
B:3,-6
C:9,-15
D:21,-3
8 0
3 years ago
A motorist took 1.2 hour to travel 96 km how far will he travel in 1 hour
miskamm [114]

Answer:

80km

Step-by-step explanation:

To solve this problem, we need to cross multiply. Lets input the values (1.2, 1.0, 96) as shown below:

\frac{1.2}{96} = \frac{1.0}{x}

Next we cross multiply. We multiply 1.2 and x, and we multiply 96 and 1.0.

1.2(x) = 1.2x

96 x 1.0 = 96

Now, lets put the values above back into the equation:

1.2x = 96

Lets solve this equation. First we divide 96 by 1.2.

1. x = \frac{96}{1.2}

2. x = 80

This means that our answer is 80km.

4 0
3 years ago
3x2 + 5x - 7(x2 + 4)
goldenfox [79]

Answer:

-4x^2+5x-28

Step-by-step explanation:

Expand -7(x^2 +4) = 3x^2+5x-7x^2-28

Simplify 3x^2+5x-7x^2-28 = -4x^2+5x-28

5 0
3 years ago
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Estimate the surface area of a cube with side length 9.9 in.
vlada-n [284]

Answer:

Estimate the surface area of a cube with side length 9.9 in.

A) 100 in²  

B) 400 in²  

C) 600 in²

D) 1000 in²

Step-by-step explanation:

9.9 to the nearest whole number is 10

We know the side length of the cube is 10

We work out the area of face and multiply by 6.

10 x 10 = 100

100 x 6 = 600 in²

3 0
3 years ago
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