Mathematics, 21.06.2020 13:57 derpmuffin47

Tania knows that the ratio of boys to girls in her class is 3:5. Since 20 of the students are girls, she says that there must be 30 students in her class. Is she right? Explain your thinking.

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Tania knows that the ratio of boys to girls in her class is 3:5. Since 20 of the students are girls,...

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