Question

Larry earns $150 a week selling cars. He receives a bonus of $ 60 for each car he seks plus his salary. How many cars must be sell to earn at least $550 a week?

Answer 1

7 cars.

Explanation:

Larry earns salary for a week = $150

He receives a bonus for each car that he sells = $60

Let the number of cars that he sells in a week = 60x

He wants to earn at least $550 a week.

We have to calculate the number of cars that he sells to earn at least $550.

150 + 60x > 550

60x > 550 - 150

60x > 400

x >
`(400)/(60)`

x > 6.666

x > 6

Larry has to sell more than 6 cars or 7 cars to earn at least $550 a week.

Answer 2

7

Explanation:

y = 60x + 150

550 - 150 = 400

400/60 = 6.66666...

Round up as you can't sell just part of the car.

He must sell 7 cars