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Mathematics, 10.12.2020 01:00 byejpg

Mia owns a small business selling bagels. She knows that in the last week 21 customers paid cash, 63 customers used a debit card, and 34 customers used a credit card. Based on these results, express the probability that the next customer will pay with cash as a fraction in simplest form.

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the discriminant is 64 + 4*1*12 = 112

this is prime.

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