SOLUTION: A student has scored 93%, 89%, 72%, 80%, and 96% on the five math tests so far. What must her score be on the sixth test be in order to have an overall average of 88%?
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Question 896033: A student has scored 93%, 89%, 72%, 80%, and 96% on the five math tests so far. What must her score be on the sixth test be in order to have an overall average of 88%? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 93+89+72+80+96=430
(430+x)/6=88
(430+x)=528
x=98
good luck with that!
another way
93-88=5
89-88=1
72-88=-16
80-88=-8
96-88=8
-24+14=-10
You are 10 below average so you need to add 10 to 88=98
