Question

Brenda’s scores on the first three of four 100-point science tests were 95, 92, and 89. What score does she need on her fourth science test to ensure an average score of at least 93?

Answer 1

B or step 2

Explanation:

I did the quiz

Answer 2

If the average of four scores is going to be 93,
then the four scores will add up to (4 x 93) = 372 .

The first three scores add up to (95 + 92 + 89) = 276 .

In order to reach a 93 average for four scores,
Brenda needs (372 - 276) = 96 on the fourth test.
Yay Brenda ! It'll be tough, but you can do it !