Hello!
If this long ribbon measures 144 feet, you can see, it was only multiplied by one number, which has the be the diameter of a column to get our circumference. If we divide this by our diameter 6 (diameter is double the radius, 3), we get our answer below.
144/6=24
Therefore, our answer is C) 24.
I hope this helps!
Answer:
The amount they charged to wash a car is <u>$6</u> and vacuum a car is <u>$2</u>.
Step-by-step explanation:
Given:
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.
Now, to find the amount they charged to wash a car and vacuum a car.
Let the amount charged for washing a car be
And the amount charged for vacuuming a car be
So, the total amount Trisha raised:
.......(1)
And, the total amount Byron raised:
Now, to get the amount they charged to wash a car and vacuum a car we use elimination method:
<em>Dividing both sides by 3 we get:</em>
<u>Amount charged to wash a car = $6.</u>
Now, putting the value of in equation (1) we get:
<em>Subtracting both sides by 30 we get:</em>
<em>Dividing both sides by 4 we get:</em>
<u>Amount charged to vacuum a car = $2.</u>
Therefore, the amount they charged to wash a car is $6 and vacuum a car is $2.