joe counted a total of 40 whites and yellow cars. there are 9 times white cars as yellow cars. how many white cars did joe counted
y + 9y = 40
10y = 40
y = 4 yellow cars
Thanks!!! I had it right:-)
You're welcome. :-)
To find the number of white cars that Joe counted, we need to set up a system of equations based on the information given.
Let's assume the number of yellow cars Joe counted is 'y', and the number of white cars is 'w'.
Given that Joe counted a total of 40 white and yellow cars, we can write the equation:
w + y = 40 (Equation 1)
Also, we are given that there are 9 times as many white cars as yellow cars. So we can write:
w = 9y (Equation 2)
Now, we can solve this system of equations to determine the value of 'w'.
Substituting Equation 2 into Equation 1, we get:
9y + y = 40
10y = 40
y = 40/10
y = 4
So, Joe counted 4 yellow cars.
Now, substituting the value of 'y' into Equation 2, we can find the number of white cars:
w = 9(4)
w = 36
Therefore, Joe counted 36 white cars.