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24-03-2021
Mathematics

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8.
The Johnsons framed a family picture to hang on the wall. The perimeter of the frame is 72 inches. Use the formula P = 2ℓ + 2w to find the length of the frame if the width is 19 inches.

A. 15 in.

B. 17 in.

C. 20 in.

D. 19 in.

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lalamcg115 lalamcg115

24-03-2021

Answer:

B. 17 in.

Step-by-step explanation:

2l + 2w = 72

2l + 2(19) = 72

2l + 38 = 72

2l = 34

l = 17

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