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VashaNatasha [74]

4 years ago

11

Jim has gotten scores of 99 and 93 on his first two tests. what score must he get on his third test to keep an average of 90 or

greater

1 answer:

romanna [79]4 years ago

7 0

For the average to be 90,

(99 + 93 + x) / 3 = 90

or 192 + x = 270
or x = 270 - 192 = 78

Jim must score at least 78 in the third test.

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