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Agata [3.3K]
3 years ago
10

The perimeter of the picture frame is 38 inches. The width of the frame is 7 inches, what is the length?

Mathematics
1 answer:
o-na [289]3 years ago
7 0

Answer:

12 inches

Step-by-step explanation:

So you know that the perimeter of a picture frame (a rectangle) is 2 widths plus 2 lengths.

Let x= lengths and w= widths

From the question we already know that w=7, so we can set up an equation that says:

2x + 2w = 38

2x + 2(7) = 38

2x+14 = 38

2x +14 -14 = 38-14

2x = 24

2x/2 = 24/2

x= 12

Since x= lengths =12

the length of the frame is 12 inches.

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