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31 August, 00:41

Solve by making a proportion.

How much does 3.25m of silk ribbon cost if 0.8m costs $5.60?

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  1. 31 August, 00:46
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    Step-by-step explanation:

    Direct proportion

    0.8 : 3.25 = 5.60: x

    Product of Means = 3.25 * 5.60

    Product of extremes = 0.8*x

    0.8*x=3.25*5.60

    x = 3.25 * 5.60 / 0.8 = 3.25*56/8

    x = 3.25*7

    x=$ 22.75
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