Question

Scott answered 18 out of the 20 questions on his homework assignment correctly. What percent of the question did he miss ?

Answer 1

He missed 10%

Explanation:

convert 18/20 to x/100

100/20 = 5

5(18) = 90

You can use this method to grade any assignment in class. Just do the total amount of questions divided by 100, then multiply that answer by the number of questions you got right.

Answer 2

10%. 18/20 is equal to 9/10. 9/10 is 90%, so he missed 10%