Question

at reaben auto shop,it take him 9 minutes to do an oil change and 12 minutes to do a tire change. he does. using the values and variables given, write an inequality how many oil changes and tire changes reuban can do in less than hour (60 minutes)

Answer 1

Let x be the number of oil changes, and y the number of tire changes.

It takes Reuben 9 minutes to do an oil change

12 minutes to do a tire change.

9x + 12y < 60