Question

Can someone please help me figure out how to answer to this problem I am really lost and if someone could just explain how to go about it, it would help a lot?

The electrical resistance of a wire varies directly with the length and inversely with the square of the diameter of the wire. If a wire 432 feet long and 4 millimeters in diameter has a resistance of 1.24 ohms, find the length of a wire of the same material whose resistance is 1.44 ohms and whose diameter is 3 millimeters.

I have to find the answer in feet rounding to rounding to 2 decimal places.

Answer 1

yes
pretty easy

Answer 2

but u need to co-ordinate

Answer 3

first
write the given data

Answer 4

how would I arrange the data to start it?

Answer 5

yeah

first sort out the given condition

Answer 6

@CheyenneMiller2496 u thre?

Answer 7

what does the condition say?

Answer 8

sorry about that my comp went haywire

Answer 9

okay
let R=Resistance
l= length
d= diameter

Answer 10

now can u figure out the condition?
just write it in mathematical expression

Answer 11

ok one sec

Answer 12

im still not sure how to set up the equation im confused on where I actually put the numbers and letters and such that's for some reason the hardest part for me?