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MissTica
3 years ago
13

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 r

oom. after 8 months of donating, he had 102 books left in his room. how many books per month did eric donate on average between monhs 3 and 8?

Mathematics
2 answers:
Akimi4 [234]3 years ago
6 0
157 - 102 = 55
-----------------------
8-3 = 5

55/5 = 11 books
chubhunter [2.5K]3 years ago
5 0
He donated 18 books per month. you first finds the difference of the books then do use the number of books by the number of months (in this case it was 5 months)
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