# Math

Ray counted a total of 40 white cars and yellow cars. There are 9 times more white cars then yellow cars. How many white cars did Ray count.

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1. if there are x yellow cars, there are 9x white cars

x + 9x = 40
10x = 40
x = 4

Now you know how many yellow cars there are, so you can figure out how many white ones there are.

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posted by Steve

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