Question

A car salesman will make $1400 salary this month and will earn an extra $500 each time he sells a car. Write an equation for the situation. Determine how much money he will make if he sells 7 cars.​

Answer 1

Given:

Fixed salary = $1400

Additional salary = $500 each time he sells a car.

To find:

The equation for the situation and how much money he will make if he sells 7 cars.​

Solution:

Let y be the total salary of the salesman after selling x cars.

He will earn an extra $500 each time he sells a car. So, extra money earned by him after selling x cars is 500x.

Total salary = Fixed salary + Additional salary

`y=1400+500x`

Substituting
`x=7`, we get

`y=1400+500(7)`

`y=1400+3500`

`y=4900`

Therefore, the required equation for the given situation is
`y=1400+500x` and the salesman will earn $4900 if he sells 7 cars.​