Algrebra Question! Please help fast!! word problem!!

Question

Coffee beans worth $10.50 per pound are to be mixed with coffee beans worth $7.50 per pound to make 80 pounds of beans worth $8.25 per pound. How many pounds of each type of coffee bean should be used?

Answer 1

p represents amount at $10.50

80  - p represents amount at $7.50

 

10.50p + 7.50(80 - p) = 8,25(80(

 

Can you solve for p and answer?