Solve the problem.
-The manager of a coffee shop has one type of coffee that sells for $9 per pound and another type that sellsfor $13 per pound. The manager wishes to mix 70 pounds of the $13 coffee to get a mixture that will sellfor $10 per pound. How many pounds of the $9 coffee should be used?
A)210 lb
B)105 lb
C)280 lb
D)140 lb

Question

Quizplus · Accepted Answer

To find the amount of $9 coffee needed, set up the equation: (9x + 13*70) / (x + 70) = 10. Solving for x gives x = 210 pounds.

Solve the Problem. -The Manager of a Coffee Shop Has One Type of One