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21 March, 22:02

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).

+5
Answers (1)
  1. 21 March, 22:30
    0
    12x + 24y < = 240

    * * because 2 hrs and 120 minutes = 240 minutes
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