italy6402 italy6402

07-06-2017
Mathematics

contestada

a rectangles plot of ground is 30 meters longer than it is wide. Its area is 10,000 square meters

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monalizaulau monalizaulau

07-06-2017

A = W· L
10,000 = W ( W +30 ) = W² + 30 W
W² + 30 W - 10,000 = 0
W =
L = 86.12 + 30 = 116.12
Width of a plot is 86.12 m and lenght is 116.12 m.
Check : A = 116.12 · 86.12 ≈ 10,000

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dontaskagain dontaskagain

07-06-2017

the answer would be 116.12 m

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