The value of Y varies directly with X, and Y = 50 when X = 18. What is the value of Y if X = 9? help!!

TAbdiukov asked Apr 19, 2023

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21 votes

The value of Y varies directly with X, and Y = 50 when X = 18. What is the value of Y if X = 9?

help!!

TAbdiukov asked Apr 19, 2023

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8 votes

Answer:

Y = 25

Explanation:

$y \: varies \: diretly \: with \: x \\ y = kx \\ 50 = 18k \\ k = 50 / 18 \\ k = 2.78 \\ \\ y = kx \\ y = 2.78 * 9 \\ y = 25.02$

Mhucka answered Apr 24, 2023

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