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02-07-2015
Mathematics

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Alice Small and Rita Flynn sold a total of 400 cosmetic kits. Alice sold three times as many kits as Rita. How many did Rita sell?

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02-07-2015

Rita sold x cosmetic kits.
Alice sold three times as many kits as Rita, so she sold 3x cosmetic kits.
They sold a total of 400 cosmetic kits.

[tex]x+3x=400 \\ 4x=400 \\ x=\frac{400}{4} \\ x=100[/tex]

Rita sold 100 cosmetic kits.

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julissandjunior julissandjunior

02-07-2015

rita sold 100 cosmetic kits

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