Mathematics, 29.07.2019 10:30 kiki2332

John participated in a science contest. he received 3 points for each correct answer but lost 2 points for each incorrect answer. after answering 50 questions, john's score was 95 points. how many questions did john answer incorrectly?

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John participated in a science contest. he received 3 points for each correct answer but lost 2 poin...

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