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lbvjy [14]
3 years ago
6

Allen wants to have a mean of 90 on his math quizzes. So far, he has scored 86, 94, 88, 95, and 89. What is the least score that

Allen needs on his next quiz to have a mean of 90?
Mathematics
1 answer:
viva [34]3 years ago
3 0

Answer:

88

Step-by-step explanation:

\frac{86 + 94 + 88 + 95 + 89 + x}{6}  = 90

The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.

Solve for x:

86 + 94 + 88 + 95 + 89 + x = 540

452 + x = 540

x = 88

Thus, Allen needs at least an 88 to obtain a mean of at least 90.

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Answer: 52\ cm,\ 176.55\ cm^2

Step-by-step explanation:

Given

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