The coffee counter charges ? $8.00 per pound for kenyan french roast coffee and ? $10.00 per pound for sumatran coffee. how much of each type should be used to make a 22 pound blend that sells for ? $9.00 per? pound?

11 lbs of each

Step-by-step explanation:

The last line (Blend) provides the equation that needs to be solved:

22(9) = 8x + 10(22 - x)

198 = 220 - 2x

-22 =  - 2x

11 = x

Kenyan: x  = 11

Sumatran: 22 - x  =  22 - 11   = 11

i hope this is what you were looking for.

see attached graph