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3 years ago

The length of a rectangle is five feet less than

Mathematics

1 answer:

kotegsom [21]3 years ago

3 0

Answer:

Length is w-5

Area = length x width

84 = (w-5)w

84 = w^2 - 5w

0 = w^2 - 5w - 84

0 = ( w - 12 )( w + 7 )

w + 7 = 0 leads to negative measures.

w-12=0 ---> w = 12

width is 12, length is 5 less, or 7

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