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Mathematics 9 Online
OpenStudy (samara8954):

A CD usually sells for $15.00. If the CD is 10% off, and sales tax is 7%, what is the total price of the CD, including tax? $14.58 $14.44 $14.55 $15.25

OpenStudy (samara8954):

@AlexandervonHumboldt2

OpenStudy (samara8954):

help @justuu

OpenStudy (danjs):

take away 10% of the 15 dollars, then tax that amount by 7%

OpenStudy (danjs):

first get what is 90% of 15.00 (0.90)*15.00 = 13.5 dollars

OpenStudy (samara8954):

help @AlexandervonHumboldt2

OpenStudy (alexandervonhumboldt2):

first 15*(1-10/100)

OpenStudy (alexandervonhumboldt2):

13.5*(1+7/100)

OpenStudy (alexandervonhumboldt2):

14.445

OpenStudy (alexandervonhumboldt2):

14.44 answer

OpenStudy (danjs):

tax that by 7%13.5 * 1.07 = 14.45 total

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