Mark scored an 89 on his first
test, an 85 on his second test, a
95 on his third test, and an 83
on his fourth test. If Mark wants
a tens score average of 90, what
must hc score on his fifth exam?

Number that is calculated by adding quantities together and dividing the total by the number of quantities. Mean value which is equal to the ratio of the sum of the number of a given set of values to the total number of values present in the set.

Given that:

First test=89

Second test=85

Third test=95

Fourth test=83

Average = 90,

so total among up to fourth test=89+85+95+83= 352,

So, 90x5= 450,

Total score=450

Fifth test=450-352= 98

So, the score on his fifth exam is 98.

Learn more about average here:

https://brainly.com/question/17125660

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Mark scored an 89 on his first test, an 85 on his second test, a 95 on his third test, and an 83 on his fourth test. If Mark wants a tens score average of 90, what must hc score on his fifth exam?

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What is average?

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Mark scored an 89 on his first
test, an 85 on his second test, a
95 on his third test, and an 83
on his fourth test. If Mark wants
a tens score average of 90, what
must hc score on his fifth exam?