Four student government officers want to go to the state convention. It will cost them $120 for registration, $355 for transportation and food, and $45 per person for the hotel. There is $495 budgeted for the convention in the student government savings account. They can earn the rest of the money they need by having a car wash.
a. If they charge $4 per car, how many cars must they wash in order to have enough money to pay for the trip?

The number of cars must they wash in order to have enough money to pay for the trip is 40.

Step-by-step explanation:

The total amount of money required for the four student government officers to go to the state convention is:

The amount saved for the convention in the student government savings account is $495.

The additional amount required is:

Additional amount = Amount Required - Amount Saved

                               = $655 - $495

                               = $160

The four students decided to earn the additional amount by washing cars.

They charge $4 for each car wash.

Compute the number of car wash the students must do is:

Thus, the number of cars must they wash in order to have enough money to pay for the trip is 40.

a) 7x=7

step-by-step explanation: