Question

The cost of renting a jet ski for a certain number of hours can be modeled by y=40x+50 How much does it cost per hour? __ What is the fee? __ How many hours would you have to rent it to pay 290^circ How much would it cost to rent for 3 hours?
Solution

4.3
(329 Votos)

Matheus
Elite · Tutor por 8 anos
Resposta
To determine the cost per hour, we need to look at the coefficient of
in the equation
. The coefficient
represents the cost per hour.So, the cost per hour is
.So, the fee is
.To find out how many hours you would have to rent it to pay
and solve for
:
Subtract 50 from both sides:
Divide both sides by 40:
So, you would have to rent it for 6 hours to pay
.Finally, to find out how much it would cost to rent for 3 hours, we substitute
into the equation:
So, it would cost
to rent for 3 hours.