SOLUTION: Hi! I was hoping that you could help me solve the following problem: The resistance of copper wire varies directly with its length. A copper wire 275 feet long has a resistance of

Question 397749: Hi! I was hoping that you could help me solve the following problem: The resistance of copper wire varies directly with its length. A copper wire 275 feet long has a resistance of 950 ohms. What is the resistance of 1,575 feet of copper wire?
Thanks!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The resistance of copper wire varies directly with its length.
A copper wire 275 feet long has a resistance of 950 ohms.
What is the resistance of 1,575 feet of copper wire?
:
That's a lot more resistance than actual, but anyway:
:
Let r = resistance of 1575 ft of wire
:
=
Cross multiply, solve for r
275r = 950 * 1575
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