Making 100 packets of A takes 2 machine hours and making 100 packets of B takes 1 machine hour; 40 machine hours are available. If x and y are the numbers of packets of A and B in hundreds, which constraint describes the machine time?
Tap an answer to check.
Hint
The hours used must not be more than the hours available.
Show the answer
Answer: A. 2x + y ≤ 40
The machine time used is 2x + y hours, and it cannot be more than the 40 hours available, so 2x + y ≤ 40.