Question

Marvin is hoping to buy a used car for S4025. His parents give him $275 towards the car. To earn the rest of the money he plans to mowlawns for $50 per yard. How many yards will he need to mow to earn enough money to buy the car?O 86 yardsO 50 yardsO 80 yardsO 75 yards

Answer 1

Let's call the amount of yards he needs to mown as 'y'. The total value of the car is $4025, since he already have $275 from his father, the rest of the money will be the difference between those values. The rest of the money, he plans to gain by working at a rate of $50 per yard. Writing all of those informations as an equation, we get:

`4025-275=50y`

To find the amount of yards he needs to mow, we just have to solve this equation for 'y':

`\begin{gathered} 4025-275=50y \\ 3750=50y \\ y=(3750)/(50)=75 \end{gathered}`

He needs to mow 75 yards to buy the car.