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The measures of the 3 sides of a triangle can be represented by algebraic expressions x, 3x-1, and 4x＋2.the perimeter of the triangle is 81inches. What are the lengths of the si…

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asked Jan 17, 2018 184k views

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The measures of the 3 sides of a triangle can be represented by algebraic expressions x, 3x-1, and 4x＋2.the perimeter of the triangle is 81inches. What are the lengths of the sides of the triangle?

Mathematics
high-school

Greg McMullen asked

by Greg McMullen

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x + 3x - 1 + 4x + 2 = 81
(add all the like terms)
8x + 1 = 81
8x = 81 - 1
8x = 80
x = 80/8
x = 10

ConstantineUA answered Jan 21, 2018

by ConstantineUA

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The measures of the 3 sides of a triangle can be represented by algebraic expressions x, 3x-1, and 4x＋2.the perimeter of the triangle is 81inches. What are the lengths of the si…

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