Jared needs to work 40 hours or more in order to save enough money to buy the car.
How to determine the number of hours Jared needs to work
To determine the number of hours Jared needs to work in order to save enough money to buy the car, set up an equation.
Denote the number of hours Jared needs to work as h.
Jared earns $20 per hour, so the amount of money he will earn from working h hours is given by:
Earnings = $20/hour * h
Jared already has $400 saved, so the total amount he will have after working h hours is:
Total amount = $400 + Earnings
We want the total amount to be $1200 or more, so we can set up the following inequality:
$400 + $20/hour * h ≥ $1200
Simplifying the equation:
$400 + $20h ≥ $1200
Subtract $400 from both sides:
$20h ≥ $800
Divide both sides by $20:
h ≥ $800 / $20
h ≥ 40
Therefore, Jared needs to work 40 hours or more in order to save enough money to buy the car.