Mathematics, 18.07.2019 12:00, idk5233

Aperson wishes to mix coffee worth $9 per lb with coffee worth $3 per lbto get 240 lbsof a mixture worth $5 per lbhow many pounds of the $9 and the $3 coffees will be needed?

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Aperson wishes to mix coffee worth $9 per lb with coffee worth $3 per lbto get 240 lbsof a mixture w...