a car can be rented from Johny's Car Rental for $2000 per day with no charge for mileage or from Car Rental Exclusive for $1000 per day plus $20 for each kilometer driven. If a car is to be rented from Car Rental Exclusive, for how many kilometers of intended travel does it cost less to rent from Johny's Car Rental?
Johnny’s Car Rental = $2000 Per Day
Car Rental Exclusive = $1000 + $20k (k is for kilometers)
The inequality set up would be: $2000 < $1000 + $20k
You then want to solve for k.
$2000 < $1000 + $20k
-$1000 < -$1000
$1000 < $20k
$1000/$20 < $20k/$20
50 < k or another way to write it is k > 50.
So where the number of kilometers is Greater than 50, Johnny’s Car Rental would be cheaper.