# Your test scores are 75, 93, 90, 82 and 85. What is the lowest score you can obtain on the next test to achieve an average of at least 86?

##### 1 Answer

Nov 15, 2016

I would have to score at least

#### Explanation:

An average is calculated by adding the figures and dividing by the number of figures. Since we have

Simplify the numerator on the left.

Multiply both sides by

Subtract