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lisov135 [29]
3 years ago
9

The width of a rectangle is 4 feet shorter than its length. The area of the rectangle is 42 ft.². Find the length and width. Rou

nd your answer to the nearest 10th of a foot.
Mathematics
1 answer:
navik [9.2K]3 years ago
4 0

Answer:

Length ≈ 20 feet (rounded down nearest 10th feet)

Width ≈ 20 feet (rounded up to nearest 10th feet)

Step-by-step explanation:

Find Length and Width

Width = Length - 4 feet

Area = 42 ft²

Area = L x W

42 = L x (L - 4)

42 = 2L - 4

42 + 4 = 2L - 4 + 4

2L = 46

2L/2 = 46/2

L = 23

L ≈ 20 feet

Width = 23 - 4

Width = 19 feet

Width ≈ 20 feet

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