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EleoNora [17]
3 years ago
8

the length of a rectangle is 4 inches less than twice its width. if the area of the rectangle is 70 square inches, what are its

dimensions
Mathematics
1 answer:
Triss [41]3 years ago
5 0

Answer: Length = 10 inches, Width = 7 inches

Step-by-step explanation:

Area = L x W

Area = 70 square inches

Length = 2W - 4

70 = 2w - 4 x w

70 = 2w^2 - 4w

2w^2 - 4w = 70

2w^2 - 4w - 70 = 0

Factor

(2w + 10)(w-7) = 0

w = 7

70 = L x 7

L = 10

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