Asked by Adiba

math test scores are 68 ,78,90and 91 what is the lowest score you can earn on the next test and still achieve an average of at least 85

Answers

Answered by Steve
the total points are now 68+78+90+91 = 327
To average 85 on 5 tests, you need 5*85 = 425

So, how many points short is that?
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