Question

Tyler went to the supermarket to buy food for a food pantry. He has $36, and can carry up to 20 pounds of food in his backpack.

Answer 1

Given:
limit of $36 and 20 pounds of food in his back pack
pasta : 1 pound package @ $1
pasta sauce: 1.5 pound jar @ $3

x = number of pasta package
y = number of jar of pasta sauce

Constraint on the weight:
x + 1.5y < 20

Constraint on the cost of purchase.
x + 3y < 36