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Mathematics 19 Online
OpenStudy (narissa):

HELP

OpenStudy (sanoofy):

Attachment?

OpenStudy (narissa):

OpenStudy (revlogic):

This is constant percent rate problem, so let's use percent change formula. Percent Change = (V2 -V1)/V1 x 100 month 0 = 80 books month 1 = 100 book P.C. = (100 - 80)/80 x 100 ===> 20/80 x 100 P.C. = 25% month 2 = ? 100 x 1.25 ==> 125 month 3 = ? 125 x 1.25 ==> 156.25 month 4 =? 156.25 x 1.25 ==> 244.141 month 5 = 244.141 x 1.25 ==> 305.176 month 6 = 305.176 x 1.25 ==> 381.470 month 7 = 381.470 x 1.25 ==> 476.837 month 8 = 476.837 x 1.25 ==> 596

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