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Josie took a long multiple-choice, end of the year vocabulary test. The ratio of the number of problems Josie got incorrect to the number of problems she got correct is 2:9. If Josie missed 20 questions, how many did she get correct?

Sagot :

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Answer:

90 because 2 x 10 = 20 so you have to x 10 to the correct problems and 9 x 10 = 90,

2:9 x 10 = 20:90,

Therefore Josie got 90 questions correct

Step-by-step explanation:

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