Question

Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an equation to represent this situation. (4 points)Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. Write an equation to represent this situation. (4 points)

Answer 1

ANSWERS

A. 250 = 50 + 70x

B. 250 = 30 + 75x

Step-by-step explanation

A. The total earnings Rhett made washing cars were $250. This was made with the $50 he earned in tips plus $70 for each car.

The equation for this situation is 250 = 50 + 70x

B. The total earnings for the mobile car wash Scarlett made were $250, the same as Rhett's. However, she charges $75 per car instead and got $35 in tips. Also, she had to pay $5 for cleaning supplies, so this is subtracted from the earnings,

`\begin{gathered} 250=35-5+75x \\ \text{ add like terms} \\ 250=30+75x \end{gathered}`

The equation for this situation is 250 = 30+ 75x