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ammullims822
13.04.2021 •
Mathematics
There were 25 problems in Mark's test. 92% of the problems he answered correctly. How many wrong answers were in Mark's test?
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Ответ:
2 incorrect answers
Step-by-step explanation:
If you take the percentage correct, you will notice its a particularly high score for the amount of questions. In this case, instead of using a really long theorem, its much simpler to just input numbers.
To find your score on a test out of 100%, you take your amount correct and divide it by the total number of questions, then multiply by 100.
If you take 24/25, you get 0.96, which if multiplied 100*0.96=96%
Now its simple, just go 23/25 to get 0.92, multiplied 100*0.92=92% correct, 25-23=2 so the amount of incorrect answers would be 2.
Ответ: