Apainter charges $15.89 per hour, plus an additional amount for the supplies. if he made $144.13 on a job where he worked 4 hours, how much did the supplies cost?

Let x be the price of the supplies. Since painter worked 4 hours for $15.89 per every hour, the total price he made for this time is $15.89 * 4. He totally made $144.13, so the equation is
144.13 = x + 15.89 * 4
Solve for x:
x = 144.13 - 15.89 * 4
x = 144.13 - 63.56
x = 80.57
This is the answer. Hope this helps, good luck, have a good day, you are welcome...

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