Question

Evelyn is taking a multiple choice test with a total of 20 points available. Each

question is worth exactly 1 point. What would be Evelyn's test score (out of 20) if she
got 3 questions wrong? What would be her score if she got z questions wrong?

Answer 1

85%

Explanation:

There is a formula for solving for percentages:

part/whole=%/100

So, Evelyn got a 17/20, yes? The when you plug in the info yo have you get:

17/20=x/100

The next step is that you criss-cross multiply, then divide. So you'd take whatever top number is there and multiply it with the 100.

17x100=1700 1700/20=85

I hope that makes sense!