dancingbootieshaker dancingbootieshaker

19-02-2021
Mathematics

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Reagan’s piggy bank has all nickels ($.05) and dimes ($.10). The value of the money in his piggy bank is $7.80. Reagan has 66 nickels, write and solve a linear equation to find the number of dimes he has.

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viktoria80 viktoria80

19-02-2021

7.80=.05(66)+.1x
7.80=3.3+.1x
-3.3 -3.3
4.5=.1x
/.1 /.1
45 = x

45 dimes

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