Mathematics
Natalya16
54

Rafael counted a total of 40 white cars and yellow cars there were 9 times as many white cars as yellow car how many white cars did Rafael count

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(1) Answers
barbiestar8756

[latex]x- \ white\ cars\\\\ y-\ yellow\ cars\\\\\ x+y=40\\\\ x=\frac{y}{9}\\\\ \frac{y}{9}+y=40\ \ |*9\\\\ y+9y=360\\\\ 10y=360\ \ |:10\\\\ y=36\\\\ x=\frac{y}{9}=\frac{36}{9}=4\\\\ There\ were\ 4\ white\ cars.[/latex]

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