SOLUTION: Eva wanted to get a B average in her class. She scored 87%, 77%. 75%, 72% and 85% on her first five tests. what must she score on her last test to get an average of 80% for all six
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Question 656913: Eva wanted to get a B average in her class. She scored 87%, 77%. 75%, 72% and 85% on her first five tests. what must she score on her last test to get an average of 80% for all six tests?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
In order to have an 80 average for 6 tests, the total of her scores must be 6 times 80. Add up the scores she has and subtract from 6 times 80.
John
My calculator said it, I believe it, that settles it
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