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12 November, 02:14

Sally has seven times as many dimes as nickels. Their value is $3.00. How many nickels does she have?

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  1. 12 November, 02:24
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    0.5+0.10 (7n) = 3

    0.05n+0.70n=3.00

    0.75n=3.00

    n=4

    4 nickels and 28 dimes.
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