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Natalija [7]
3 years ago
14

Misty took a multiple choice test in science that had 50 questions. If the relationship between the number she got correct and t

he number she got incorrect is 7:3, and she got 9 incorrect, how many did she get correct?
Mathematics
1 answer:
Alex3 years ago
4 0
In this case, the total number of questions in the test is 50. The possible outcome for the question would be answered wrong, answered correctly or not answered. To know the amount of the correct answer, you need to multiply the incorrect with correct/incorrect ratio. The equation would be:
correct answer: 9 answer * 7/3= 21 answer.

Then for this test misty has:
9 incorrect answer
21 correct answer
20 blank/ not answered
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