Question

Write an expression to represent this scenario where r represents the number of rides. Write and solve an equation to determine how many rides Kolby can ride if his parents have him $26.00. Show your work.

Answer 1

Given:

Charge for entry = $8.00

charge per ride = $1.40

Part A

Given that r is the number of rides Kolby takes

The amount he would spend is:

`=\text{ 1.4r + 8}`

Part B

Given that his parents gave him $26.00. The number of rides(r) he can take can be calculated by solving for r in the equation below:

`1.4r\text{ + 8 = 26}`

Solving for r:

`\begin{gathered} 1.4r\text{ = 26 - 8} \\ 1.4r\text{ =18} \\ \text{Divide both sides by 1.4} \\ (1.4r)/(1.4)\text{ = }(18)/(1.4) \\ r\text{ = 12.867} \end{gathered}`

Hence, Kolby can take 12 rides