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Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Sho…

Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Sho…
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Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Show your work to justify your decision

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User Rony
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2 Answers

3 votes
The answer is incorrect because 11-10=1. and 1÷10 is 10. 10(100) Is 10%. Marcus just added a zero to eleven and turned it into a percent . This is why Marcus is incorrect
answered
User Jeremy Holt
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8.1k points
6 votes
He is indeed incorrect, because change is described as [change] / [original amount]. Therefore, he actually only studied 10% more than the previous week
answered
User Hfactor
by
8.7k points
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