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Manuel has scored 79, 66, and 79 on his previous three tests. What score does he need on his next test so that his average (mean) is 78?

Manuel has scored 79, 66, and 79 on his previous three tests. What score does he need on his next test so that his average (mean) is 78?
asked 217k views
22 votes
Manuel has scored 79, 66, and 79 on his previous three tests. What score does he need on his next test so that his average (mean) is 78?

asked
User Mateng
by
8.3k points

2 Answers

8 votes

Answer:

88

Explanation:

79+66+79+88 = 312

312/4 = 78

answered
User Duncan Gravill
by
9.1k points
12 votes
Manuel will need to score an 88
answered
User Roll
by
8.1k points
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