Question

A merchant blends tea that sells for $4.40 a pound with tea that sells for $2.30 a pound to produce 120 lb of a mixture that sells for $3.00 a pound. How many pounds of each type of tea does the merchant use in the blend?

Answer 1

If there are x lbs of 4.40 tea, then the rest (120-x) is 2.30

So, we need

4.40x + 2.30(120-x) = 3.00(120)
Now just solve for x.