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Mathematics, 04.08.2019 10:30 sam10146
Initially, $40\%$ of the students at the school dance are girls. then, $15$ more girls arrive, after which $52\%$ of the students at the dance are girls. how many students are now at the dance after the additional girls arrive?
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Initially, $40\%$ of the students at the school dance are girls. then, $15$ more girls arrive, after...
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