Monday
April 21, 2014

Homework Help: Variation

Posted by Soly on Monday, October 8, 2007 at 7:29pm.

I have few questions that I need checked please and could you help me with the last question?

Write an equation that expreses the relationship. Use k as the constant of varaiation.

1. s varies directly as h
-I got: s=kh

2.a varies directly as the square of m.
-I got: a=km^2

Determine the constant of variation the stated condition.

6. b varies directly as a, and b=90 when a=6.
-this is what I did: 90=k/6, then I multiplied each side by 6, (6)(90)=k(6)/(6)(6), I got k=15.

If y varies directly as x, find the direct variation equation for the situation.
10. y=4 when x=20
-This question I dont understand

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