Problema Solution
beans $6.42 per pound and $7.28 per pound. How many pounds at $7.28 mixed with 7 pounds of $6.42 beans to sell the mixture at $7.20 per pound?
Answer provided by our tutors
7.28x + 6.42(7) = 7.20(x + 7)
7.28x + 44.94 = 7.20x + 50.4
7.28x = 7.20x + 5.46
.08x = 5.46
68.25 pounds