Mathematics, 18.06.2021 23:20 rose5986

Suppose that $60\%$ of the eighth graders and $30\%$ of the seventh graders at Washington Junior High participate in MATHCOUNTS. There are $150\%$ as many eighth-graders as there are seventh graders at the school. What percentage of the seventh and eighth graders, taken together, participates in MATHCOUNTS?

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Suppose that $60\%$ of the eighth graders and $30\%$ of the seventh graders at Washington Junior Hig...

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