in algebraic solution only- For five exams. Jenn has an average of 88. What must she score on the sixth test to bring her average to exactly 90?
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Hi Neienii,She must score X in the 6th test. Now let's find the value of X. ( 88*5 + X ) / 6 = 90 440 + X = 540x=100 So, she has to get exactly 100 (in the 6th test) to raise her average to 90. Best regards,
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