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28 November, 13:11

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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  1. 28 November, 14:54
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    Let P = perimeter

    P = 3x + 5

    Let x = 10

    P = 3 (10) + 5

    P = 30 + 5

    P = 35
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