Question

You earned the following scores on five math test:96 92 80 91 and 86 you want to have an average of at least 90 after you take the sixth test.Write and solve an inequality to find the possible score on your sixth test in order to meet your goal

Answer 1

(96+92+80+91+86+x)= 90
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6

(445+x)=90
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6
then you multiply 6 on both sides

445+×=540
-445. -445
x= 95

they need a 95 percent to have an average of a 90%.