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OpenStudy (anonymous):
Question 1 (Multiple Choice Worth 2 points) Eric has been donating books he no longer needs to his local library. After 3 months of donating, he had 157 books left in his room. After 8 months of donating, he had 102 books left in his room. How many books per month did Eric donate on average between months 3 and 8?
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OpenStudy (♪chibiterasu):
(change in books) divided by (change in months)
OpenStudy (♪chibiterasu):
So what would that look like?
OpenStudy (♪chibiterasu):
Ok: 55/5
OpenStudy (♪chibiterasu):
That simplifies to 11/1
OpenStudy (♪chibiterasu):
11/1 is just 11. So . . .
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OpenStudy (♪chibiterasu):
The answer is 11
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