In Problem, express your answer as a linear inequality with appropriate non-negative restrictions and draw its graph.

Question:

In Problem, express your answer as a linear inequality with appropriate non-negative restrictions and draw its graph.
Refer to Problem 53. It takes 15 minutes to cover a regular mattress and 20 minutes to cover a king mattress. If the covering department has 160 labor-hours available each day, how many regular and king mattresses can be covered in one day?
Problem 53
A company produces foam mattresses in two sizes: regular and king. It takes 5 minutes to cut the foam for a regular mattress and 6 minutes for a king mattress. If the cutting department has 50 labor-hours available each day, how many regular and king mattresses can be cut in one day?