Ann took

8

tests this year. Her mean score was

75

points. How many total points did she earn for the

7

tests?

8

tests this year. Her mean score was

75

points. How many total points did she earn for the

7

tests?

Less than 600 but more thatn 525

How do you calculate the mean (average)?

Isn’t it just

**Mean **= **(total points of all the tests) **divided by** (number of tests)**?

Let’s work with that.

Multiply each side of that formula by (number of tests), and you have

**Total points of all the tests **= ** (Mean) **times** (number of tests)**.

In this problem, you know the mean, and you know the number of tests,

so you can easily calculate the total points.

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