Rafael counted a total of 40 white cars and yellow cars there were nine times as many white cars and yellow cars how many white cars did rafael count

To do this, it would be easiest to create variables for the different colored cars and then create an algebraic expression using them. For the white cars, I will use variable "W', for the yellow cars, I will use variable "Y".
Because we know that there are 9 times as many white cars, or 9x, we can say:
9Y + Y = 40
 Simplify, and we get 10 Y = 40, so Y = 4

Y = 4

Hope this helped!! :D

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