Mathematics, 16.11.2019 00:31 Tracic1972

Mai's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs mai $5.50 per pound, and type b coffee costs $4.20 per pound. this month, mai made 165 pounds of the blend, for a total cost of $815.20 . how many pounds of type b coffee did she use?

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