Rebeckah answered 42 of the 60 questions correctly on a test. Which method should she use to find the percent of questions she a

Question

3 years ago

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Rebeckah answered 42 of the 60 questions correctly on a test. Which method should she use to find the percent of questions she a

nswered correctly?
A. First, subtract 42 from 60 to find the ratio of questions answered correctly to total questions, which is 18/60. Then, add 40 to the numerator and denominator to find the percent: 58/100 = 58%.

B. First, find the ratio of questions answered correctly to total questions, which is 42/60. Then, add 40 to the numerator and denominator to find the percent: 82/100 = 82%

C. First, subtract 42 from 60 to find the ratio of questions answered correctly to total questions, which is 18/60. Then, simplify the ratio to 3/10. Finally, multiply the numerator and denominator by 10 to find the percent: 30/100 = 30%

D. First, find the ratio of questions answered correctly to total questions, which is 42/60. Then, simplify the ratio to 7/10. Finally, multiply the numerator and denominator by 10 to get 70/100 = 70%.

Mathematics