SOLUTION: Here is what I'm trying to figure out. An artist paints designs on t-shirts. it takes 12 minutes to set up the equipment and 36 minutes to clean the equipment and put it away. Once

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Question 782451: Here is what I'm trying to figure out. An artist paints designs on t-shirts. it takes 12 minutes to set up the equipment and 36 minutes to clean the equipment and put it away. Once everything is set up, it takes about 9 minutes to paint a design on each t-shirt. How many t-shirts can the artist make in 2 hours ? why? (provide an equation as well)
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Let n = number of t-shirts.
2 hours is 120 minutes.

The time to do everything must be no greater than 120 minutes.
Account for all time quantities.
12%2B36%2B9n%3C=120

Once solved for n, you need to pick the nearest whole number which makes sense. The reason is that the artist must finish a t-shirt that he starts; he cannot paint only a partial picture.