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

User Camille
by
8.1k points

2 Answers

7 votes

Answer:

Explanation:

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

User Tom Crockett
by
8.0k points
6 votes

Answer:

90%

Explanation:

90*0.90=81

User Arshaw
by
8.8k points
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