Question 605722
    jimmy is a partner in an internet based coffee supplier. The company offers gourmet coffee beans for $11 per pound and regular coffee beans for $7 per pound. Jummy is creating a medium price product that will sell for $9 per pound. The first thing to go into the mixing bin was 10 pounds of the gourmet beans. how many pounds of the less expensive regular beans should be added?
.
Let x = amount (pounds) of lest expensive beans ($7 per pound)
then
10-x = amount (pounds) of $11 per pound beans
.
7x + 11(10-x) = 9(10)
7x + 110-11x = 90
110-4x = 90
-4x = -20
x = 5 pounds