Homework Help: 8th grade

Posted by Lisa on Monday, November 29, 2010 at 6:18pm.

Tom had scores of 78, 88, 94 and 79 on his first four science tests. What must he score on the next test to have an average of 88?

8th grade - Ms. Sue, Monday, November 29, 2010 at 6:49pm
5 * 88 = 440

78 + 88 + 94 + 79 = 339

440 - 339 = 101

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