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23-09-2015
Mathematics

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The cost for a certain music plan is $9.99per year plus $0.25per song you download.if you paid $113.74one year find the number of songs you downloaded

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23-09-2015

[tex]9.99+ 0.25 n =113.74\\0.25n = 113.74 - 9.99\\0.25n = 103.75\\n=103.75 \times 4 \\\\\boxed {\sf {n=415}}[/tex]

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