Problema Solution
The manager of a coffee shop has one type of coffee that sells for $7 per pound and another type that sells for $14 per pound.The manager wishes to mix 40 pounds of the $14 dollar coffee to get a mixture that will sell for $12 per pound.How many pounds of the $7 coffee should be used?
Answer provided by our tutors
suppose x pounds of the $7 coffee should be used
the total values shoule be same
7 * x +14 * 40 = 12 * (x + 40)
7x + 560 = 12x + 480
5x = 80
x = 16
16 pounds of the $7 coffee should be used