Try another version of this question
You have one type of chocolate that sells for $1.70/lb and another type of chocolate that sells for $9.50/lb.
You would like to have 31.2 lbs of a chocolate mixture that sells for $9.40/lb.
How much of each chocolate will you need to obtain the desired mixture?
You will need
lbs of the cheaper chocolate
and
lbs of the expensive chocolate. 0.4
30.8