| Units (lb) | Price per Unit | Price |
Gourmet cat food | 5 | $1.75 | (5)(1.75)= $8.75 |
Cheaper cat food | W | $.50 | (w)(.50) |
Mixed cat food | 5 + w | $1.00 | (5+w)(1.00) |
8.75 + (w)(.50) = (5 +w)(1.00)
Solve . . .
W = 7.5
Answer: Jerry should buy 7.5 pounds of cheaper cat food to be mixed with the 5 pounds of gourmet cat food to equal out to $1.00 per pound of cat food.