Problema Solution
briannas last four test scores are 87,85,91,and 88. what scores on her next test will give her an average of 90 or above.
Answer provided by our tutors
Let 'x' represent the score on the next test.
The average of 87, 85, 91, 88 and x is 90 or above means:
(87 + 85 + 91 + 88 + x)/5 >= 90
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x >= 99
Brianna must score 99 or more on her next test.