Kareem's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Kareem $4.05 per pound, and type B coffee costs $5.65 per pound.

Question

Kareem's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Kareem $4.05

 per pound, and type B coffee costs $5.65

 per pound. This month's blend used twice as many pounds of type B coffee as type A, for a total cost of $353.05

. How many pounds of type A coffee were used? 

Answer 1

4.05a +5.65(2a)= 353.05

15.35a= 353.05

a = 353.05/15.35= 23 lbs A

46 lbs B