Joe's auto shop, it takes him
12
minutes to do an oil change and
24
minutes to do a tire change. Let
x
be the number of oil changes he does. Let
y
be the number of tire changes he does.
Using the values and variables given, write an inequality describing how many oil changes and tire changes Joe can do in at most
2
hours (
120
minutes).

Respuesta :

12x + 24y < = 240

** because 2 hrs and 120 minutes = 240 minutes