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OpenStudy (yessenia27):
Evan spent 20 hours doing homework last week. This week he spent 25 hours doing homework. He says that he spent 125% more time doing homework this week. Is he correct? Show your work to justify your decision.
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MARC (marc_d):
\[\frac{ this~week }{ last~week }\times100percent\]
MARC (marc_d):
\[\frac{ 25 }{ 20 }\times100percent\]
MARC (marc_d):
\[=\frac{ 5 }{ 4 }\times100percent\]
MARC (marc_d):
\[=125percent\]
MARC (marc_d):
Therefore,he is correct.
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MARC (marc_d):
@yessenia27
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