SOLUTION: Rizza obtained the following scores in a 10-item quiz: 8, 7, 5, 9, 10, 7, 6, and x. Find the values of x such that the mean is at least 7.5.

Question 1193339: Rizza obtained the following scores in a 10-item quiz: 8, 7, 5, 9, 10, 7, 6, and x. Find the values of x such that the mean is at least 7.5.
Found 2 solutions by ikleyn, greenestamps:
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
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U N C L E A R

Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

The problem says there are 10 items on the quiz; but only 8 scores are shown....

Faulty problem.

It appears that the 10 items are each worth 10 points; the statement of the problem should say so.

Re-post the problem correctly

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