The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound?

Answer 1

amount of $8 coffee --- x
amount of $ 4 coffee -- 60-x

8x + 4(60-x) = 5.25(60)
8x + 240 - 4x = 315
4x = 75
x = 18.75 lbs