At Hong's auto shop, it takes him 12 minutes to do an oil change and 18 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 oll changes and tire changes Hong can do in at most an hour (60 minutes).

12x+18y ≤ 60

Step-by-step explanation:

Hi, to answer this question we have to write an inequality with the information given:

The product of the time that takes to do an oil change (12) and the number of oil changes(x); plus The product of the time that takes to do a tire change (18) and the number of tire changes; must be less or equal to  60 minutes (time available).

12x+18y ≤ 60

Feel free to ask for more if needed or if you did not understand something.

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step-by-step explanation: