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3 years ago

Average score in the first 7 tests is 82. How much do you need to score to get an average of 85?

Mathematics

1 answer:

RSB [31]3 years ago

5 0

X+X+X+X+X+X+X/7=82

X+X+X+X+X+X+X+X/8=85

X+X+X+X+X+X+X=574

X+X+X+X+X+X+X+X=680

X=106

You need to score 106

Hope this helps :D

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3 years ago

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