Sam charges a $5 travel fee and then $3.25 per hour for labor. How many hours will he need to work to make $18?
To find out how many hours Sam needs to work to make $18, let's set up an equation:
Total earnings = Travel fee + Labor fee
Sam charges a $5 travel fee, so the travel fee is $5.
Sam also charges $3.25 per hour for labor.
Let's assume Sam needs to work x hours to make $18.
Therefore, the equation becomes:
18 = 5 + (3.25 * x)
To solve for x, we need to isolate the variable. Subtract 5 from both sides of the equation:
18 - 5 = 5 - 5 + (3.25 * x)
13 = 3.25x
Divide both sides of the equation by 3.25:
13 / 3.25 = (3.25x) / 3.25
4 = x
Sam needs to work 4 hours to make $18.