In order to know the answer, you would have to set up a system of equations:
Given that type A coffee costs $4.15 per pound
(4.15x)
Given that type B coffee costs $5.25 per pound
(5.25y)
And that the total cost of it all was $642.60
Also, the amount of pounds, represented by x and y add up to 150 pounds total:
Given that type A coffee costs $4.15 per pound
(4.15x)
Given that type B coffee costs $5.25 per pound
(5.25y)
And that the total cost of it all was $642.60
Also, the amount of pounds, represented by x and y add up to 150 pounds total: