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.
(Please answer in your own words and include detailed description)
That is correct. Since there are 168 hours in a week, 15 hours would be .09%, and 18 hours would be 0.11%. In proportion, 0.11 is .2 more than .09, which is equivalent to saying 120%.
She is not correct 20% of 15 is 3 You add 3 hours =add 20% 15 =100% 3=20% 18=120% But it is not 120% more than 15. It is 120% of 15 She worked 20% more
