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23-08-2017
Mathematics

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A rectangular kitchen is 4 meters longer than it is wide. If the area of the kitchen is 192 square feet meters, how many meters long is it.

A rectangular kitchen is 4 meters longer than it is wide If the area of the kitchen is 192 square feet meters how many meters long is it class=

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musiclover10045 musiclover10045

23-08-2017

width = w

length = w+4

area = l x w = w*w+4

192 = w^2 + 4w

w^2 +4w - 192 = 0

(w+16) (w-12)

w = 12

length = 12+4 = 16

answer is J

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