Laura's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs laura $5.50 per pound, and type b coffee costs $4.20 per pound. this month's blend used four times as many pounds of type b coffee as type a, for a total cost of $602.10. how many pounds of type a coffee were used?

27 pounds

Step-by-step explanation:

We know that Coffee A costs $5.50 per pound, Coffee B costs $4.20 per pound and that this month the total cost was $602.10, then:

 (2)

We know that this month were used used four times as many pounds of type B coffee as type A, then:

 (1)

So, you need to substitute (1) into (2) and solve for A:

21/58.

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true

step-by-step explanation: