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April 27, 2015

Homework Help: Algebra

Posted by mysterychicken on Saturday, June 19, 2010 at 11:19am.

16. Going into his final exam, John has a total of 72 points out of 90 possible in his history class. His final exam is worth 10 points. How many points must he get on his final exam to end the class with an 80%?

8?

17. Joan actually likes 30% of her male friends and 20% of her female friends. She has a total of 200 friends, 45% of them are male. How many female friends does Joan actually like?

22?

Thanks
-MC

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