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The ratio of math teachers to choir teachers is 3:2 respectively. There are 12 math teachers. How many math and choir teachers are there all together?
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The ratio of math teachers to choir teachers is 3:2 respectively. There are 12 math teachers. How many math and choir teachers are there all together?

User Selrond
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5 votes

Answer:

30

Explanation:


3 + 2 = 5 \\ (2)/(5) * x = 12 \\ \\ (2x)/(5) = 12 \\ cross \: mutiply \\ 2x = 60 \\ divde \:both \: sides \: by \: 2 \\ x = 30

User Vytas
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