Asked by kellyann

jones attained the following scores in three tests 36,75,60. if his average in four tests is 75, find his mark in the fourth test.
Answered by Steve
75 x 4 = 300

36 + 75 + 60 = 171

300 - 171 = 129 wow must have been lot of extra credit.
Answered by Anonymous
on three 150 point history test, you earned 88%, 94% and 90%. the final test is worth 250 points. what
percent is needed in the final test to earn 93% of total points on all tests

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