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anonymous

  • one year ago

An online service increased the price of downloading a song from $1.79 to $1.99 . To the nearest whole percent, by how much did the price rise ? PLZ HELP ME !!!!!

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  1. anonymous
    • one year ago
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    @mathstudent55 can you help me ?

  2. jdoe0001
    • one year ago
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    hmmm how much did it increase by though? notice, 1.79 and 1.99 how much was changed in the price?

  3. anonymous
    • one year ago
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    It was changed by 20 cents @jdoe0001

  4. anonymous
    • one year ago
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    @ccswims can you help me ?

  5. jdoe0001
    • one year ago
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    right so, start price is 1.79 so we could say that 1.79 is the 100% amount so how much is 20cents of $1.79 or 179cents? well \(\large { \begin{array}{ccllll} \$&\% \\\hline\\ 179&100\\ 20&x \end{array}\implies \cfrac{179}{20}=\cfrac{100}{x}\impliedby \textit{solve for "x"} }\)

  6. anonymous
    • one year ago
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    Kk now should I cross mulitply ?

  7. ccswims
    • one year ago
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    yes, cross multiply

  8. anonymous
    • one year ago
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    Kk I'll do that now @ccswims

  9. anonymous
    • one year ago
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    I did it & I got 11.1731845

  10. ccswims
    • one year ago
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    yes, now make that into a percent

  11. jdoe0001
    • one year ago
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    yeap, and that rounded up to the nearest whole percent is, 11%

  12. anonymous
    • one year ago
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    Kk thank you very much @jdoe0001 I really appreciate it

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