SOLUTION: During summer vacation, you charge people $10 per hour to teach their children math and a flat rate of $12 for the cost of driving there. If you make $42 one day, how many hours

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Question 1098130: During summer vacation, you charge
people $10 per hour to teach their children
math and a flat rate of $12 for the cost of
driving there. If you make $42 one day, how many hours did you spend teaching?

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = number of hrs spent teaching



You spent 3 hrs teaching

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