SOLUTION: Your test scores in one class are 80 and 84. What possible scores can you earn on your next test to have a test average between 82 and 88, inclusive?

Question 1169462: Your test scores in one class are 80 and 84. What possible scores can you earn on your next test to have a test average between 82 and 88, inclusive?
Answer by ikleyn(52800) (Show Source): You can put this solution on YOUR website!
.


The governing inequality is this one


    82 <=  <= 88.


Multiply both sides by 3


    82*3 <= 164 + x <= 88*3


Simplify


    82*3 - 164 <= x <= 88*3 - 164   or


       82      <= x < = 100.    ANSWER

Solved.

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SOLUTION: Your test scores in one class are 80 and 84. What possible scores can you earn on your next test to have a test average between 82 and 88​, ​inclusive?

SOLUTION: Your test scores in one class are 80 and 84. What possible scores can you earn on your next test to have a test average between 82 and 88, inclusive?