anonymous
  • anonymous
Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
At first i said this.... First you do 3/15 x 100. This = 20. Now you have to add 20 and 100, that = 120. Maxine spent 18 hours doing homework last week. For this part you subtract 18 - 15. The answer will be 3. Then you divide 2 and 15 = 0.3. 0.2 x 100 = P. P= percent. 0.2 x 100 = 20. 20 + 100 = 120. Maxine as correct.
anonymous
  • anonymous
There are no choices btw
phi
  • phi
She spend 20% more on homework (not 120% more) You should think like this: 15 hours + 3 more hours the 3 more hours is 20% of the original in other words she worked 20% more than the first week

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anonymous
  • anonymous
How should i write that in a sentence?
anonymous
  • anonymous
I disagree with your answer @beckyg111
phi
  • phi
just say 120% of 15 is 18 and she did not work 18 more hours 20% of 15 is 3, and she did work 3 more hours (than 15)
anonymous
  • anonymous
Maxine spent 20% more, not 120%

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