Andy scored 90 on the last history exam. He scored 81 this time. By what percent did his score decrease?

asked Oct 26, 2020 78.3k views

4 votes

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7 votes

Answer:

Explanation:

If out of 100, 90-81=9 so it decreased by 9%

Tom Crockett answered Oct 28, 2020

5.6k points

6 votes

Answer:

90%

Explanation:

90*0.90=81

Arshaw answered Oct 30, 2020

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