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gladu [14]
2 years ago
6

1. Given the function f(x) = 7(3 - x) + 5, which of the following is a true

Mathematics
1 answer:
Dimas [21]2 years ago
3 0
C is the answer! (3-(-4)=7 then 7x7 equals 49 then + 5= 54
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Step-by-step explanation:

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2 years ago
A 13?-foot board is cut into two pieces. The longer piece is 7.5 feet longer than the shorter piece. What is the length of each?
chubhunter [2.5K]

Answer:

The smaller board would be 2.75 feet and the longer one would be 10.25 feet.

Step-by-step explanation:

In order to find this, assume the shorter board is equal to x. Next, we would know that the longer board would be equal to x + 7.5. Using these two assumptions, we can add the lengths together, set equal to 13 and then solve for x.

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6 0
3 years ago
Solve this system of linear equations. Separate
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Anastaziya [24]

Answer:

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8x - 4y = -12 

4(2x-y)=-12

 
   Factor \ out \ the \ common \ term \ 4

2x-y=- \dfrac{12}{4}    Divide \ both \ sides \ by \ 4

2x-y=-3

 

 

-y=-3-2x       Subtract \ 2x \ from \ both \ sides

y=3+2x        Multiply \ both \ sides \ by \ -1
4 0
3 years ago
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