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 Question from Cortlin, a parent: Because of different bedroom sizes, three roommates decide to split the rent this way: Roommate A pays 75% as much as B does, and C pays 40% as much as B does. What fractional part and percent of the rent does each roommate pay?

Hi Cortlin,

Suppose that the rent is $\$r$and B pays$\$b.$ How much does A pay? How much does C pay? The sum of the amounts each pay is $\$r.$What fraction of$\$r$ does B pay?

Penny

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