November 25, 2015

Homework Help: math

Posted by Jane on Tuesday, November 6, 2012 at 1:37pm.

If y varies diretly with x, write an equation for the direct variation. then find each value.

Find y when x = 10 if y = 8 when x = 20

If think I can find the value by
y/10 = 8/20 with the answer for the value is 4. My problem is how to find the equation. Please explain.

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