SOLUTION: Anne wants to create a mix of two coffees, one is $8.40 a lb. and the other is $7.28 a lb. How many pounds of the $7.28 coffess should she ad to 9 pounds of the $8.40 coffee to se

Question 30696: Anne wants to create a mix of two coffees, one is $8.40 a lb. and the other is $7.28 a lb. How many pounds of the $7.28 coffess should she ad to 9 pounds of the $8.40 coffee to sell the mixture for $7.95 a pound? I had a problem like this last week, i did not get my homework back to use as a reference...please help, I'm lost after....$8.40 x 9 = $75.60.
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
LEt the solution be x
Equation:
7.28x+8.4(9)=7.95(x+8)
7.28x+75.6=63.6+7.95x
0.67x=12
x=17.9

Hence, about 17.9 pounds of solution must be added.
PAul.
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