Question

Rafael counted a total of 40 white cars and yellow cars. There were 9 times as many white cars as yellow cars. How many white cars did Rafael count?

Answer 1

Rafael saw 36 white cars. 

Answer 2

Rafael counted a total of 40 cars for both yellow and white. If he saw an x number of  yellow cars then you multiply the number of x yellow cars by 9 . If he saw 4 yellow cars then he multiplies 4 by 9 to get 36 white cars and 36 plus 4 is 40. Therefore Rafael counted 4 yellow cars and 36 white cars.