yanchen12431222 yanchen12431222

08-02-2017
Mathematics

contestada

Find the width of a rectangular pool that has a perimeter of 890 feet if the width is five more than three times the length

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wolf1728 wolf1728

08-02-2017

A) 2W + 2L = 890
B) W = 3L +5

Multiplying equation B by -2
B) -2W = -6L -10
B) -2W +6L = -10
then adding to equation A
A) 2W + 2L = 890
8L = 880
L = 110
W = 335

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