SOLUTION: the resistance(R) of a wire is directly proportionnal to its lenght(L). knowing that for a wire 10 metres, the resistance is 0,03. calculate the lenght of yarn whose resistance is

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Question 126708: the resistance(R) of a wire is directly proportionnal to its lenght(L). knowing that for a wire 10 metres, the resistance is 0,03. calculate the lenght of yarn whose resistance is 0,36.
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
10/.03=x/.36 cross multiply
.03x=10*.36
.03x=3.6
x=3.6/.03
x=120 m. is the length.