Asked by jen
if lisa studies for 9 hours and gets a score of 75. How long would she have to study to get a score of 94
Answers
Answered by
Steve
assuming a linear relationship, we can say she gets a score of 75/9 for each hour she studies. So, if we let
94 = 75/9 * h
h = 11.28
so, if she studies 11.28 hours, she will get a 94.
Of course, there are lots of other ways to do this; the problem is woefully underspecified. Suppose she gets a score of 48 with no studying at all. Thus, she gets 3 points per hour for studying. She will thus need 34/3 = 11.33 hours to get a 94.
94 = 75/9 * h
h = 11.28
so, if she studies 11.28 hours, she will get a 94.
Of course, there are lots of other ways to do this; the problem is woefully underspecified. Suppose she gets a score of 48 with no studying at all. Thus, she gets 3 points per hour for studying. She will thus need 34/3 = 11.33 hours to get a 94.
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