Homework Help: math

Posted by ryan montalvo on Wednesday, August 29, 2012 at 10:05am.

vina has the following grades in math 88,85,89,95 and 91.What must be her sixth grade if she wants to get an average of 90?

math - Reiny, Wednesday, August 29, 2012 at 10:36am
solve for x

(88+85+89+95+91+x)/6 = 90

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