Question

Carrie is making a bed skirt for her twin beds. One side of the a mattress measures 39inches, and another side measures 75inches. How many feet of fabrics will Carrie need to make skirts for both beds?

Answer 1

35 ft

Explanation:

Answer 2

38 feet

Explanation:

The perimeter of one mattress is twice the sum of the given side lengths, so is ...

P = 2(75 in + 39 in) = 228 in

Then the perimeter of the two beds will be ...

total length = 2 × 228 in = 456 in = 38 feet

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There are 12 inches in a foot. (456 in)/(12 in/ft) = 38 ft