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Today, 00:27

suppose that 19 inches of wire costs 57 cents. at the same, rate how many inches of wire can be brought for 36 cents?

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  1. Today, 01:19
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    12 inches

    Step-by-step explanation:

    Since you know your multiplication tables, you know that 57 = 3·19, so the wire is 3 cents for each inch. Then you also know that 36 = 3·12, so 12 inches of wire will cost 36 cents.

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    You can also write the proportion ...

    19 in / (57 cents) = x / (36 cents)

    Multiplying by 36 gives

    x = (19 in) ·36/57 = 12 in
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