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15 February, 14:43

See an algebraic equation to solve the problem. The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if that perimeter of the triangle is 90 cm?

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  1. 15 February, 15:39
    0
    22.5

    30

    37.5

    Step-by-step explanation:

    You have to multiply each ratio part by x to get them properly set up to add to 90.

    3x + 4x + 5x = 90 Combine the left side

    12x = 90 Divide by 12

    12x/12 = 90/12 Do the division

    x = 7.5

    3x = 3*7.5 = 22.5

    4x = 4*7.5 = 30

    5x = 5*7.5 = 37.5

    Total 90
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