Trisha and byron are washing and vacuuming cars to raise money for a class trip. trisha raised $38 washington 5 cars and vacuuming 4 cars. byron raises $28 by washing 4 cars and vacuuming 2 cars. find the amount they charged to wash a car and vacuum a car.

They charged $6 for washing and $2 for vacuuming the car.

Step-by-step explanation:

Let the charge of washing a car be 'x'.

And also let the charge of vacuuming a car be 'y'.

Now according to question, Trisha raised $38 washing 5 cars and vacuuming 4 cars.

So framing the above sentence in equation form, we get;

Again according to question, Byron raises $28 by washing 4 cars and vacuuming 2 cars.

So framing the above sentence in equation form, we get;

Now multiplying equation 2 by '2', we get;

Now we subtract equation 1 from equation 3 and get;

Now substituting the value of 'x' in equation 1, we get;

Hence They charged $6 for washing and $2 for vacuuming the car.

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

answer: the value of x is 7cm

step-by-step explanation: