Mathematics

Mathematics, 23.08.2019 19:00, Gabysh3794

(i have a deadline in 3 hours : c ) ann's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs ann $4.35 per pound, and type b coffee costs $5.40 per pound. this month's blend used three times as many pounds of type b coffee as type a, for a total cost of $780.90. how many pounds of type a coffee were used?

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