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12-09-2019
Mathematics

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A triangle has one side that is 5 inches long and the other two sides are both of length x. Write an expression for the perimeter of the triangle in terms of x and then use the expression to find the perimeter when x=10.

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12-09-2019

Let P = perimeter

P = 3x + 5

Let x = 10

P = 3(10) + 5

P = 30 + 5

P = 35

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