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15-07-2017
Mathematics

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Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is Margie's percent of error?

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15-07-2017

%error=100(calculated-actual)/actual

%error=100(175-97.5)/97.5

e%=100(77.5)/97.5

e%=7750/97.5

e%=77500/975

e%=3100/39

e%≈79.49% (to nearest hundredth of a percent)

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