Problem 99 of 7
A rental company charges 30 dollars plus 12 dollars per hour. Another charges 18 dollars plus 15 dollars per hour. Write and solve an equation with the variable on both sides.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
represent competing plans and solve break-even style equation.
Hidden until you reveal it.
Linear expressions must produce a positive solution.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Write an expression for each option.
2. Set the expressions equal at the break-even point.
3. Collect variable terms on one side and constants on the other.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Equations comparing only rates or only starting amounts.