Problema Solution
Trina has one test left to go before her report card. If she already has scores of 88,96,90,89,100, what is the lowest score she can get on her final test In order to get a 93% average
Answer provided by our tutors
we will assume that the maximum numbers on the text is 100
let x = the score on her final test
the average is:
(88 + 96 + 90 + 89 + 100 + x)/6 = 93 (since 93% of 100 is 93)
by solving we find:
x = 95
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Trina has to score 95 in order to get a 93% average.