Posted by **Tate** on Sunday, January 9, 2011 at 7:16pm.

a nickle is approximately 20mm in diameter and a quarter is about 25 mm in diameter. if the nickle is enlarges to a diameter of 128mm, what would be the diameter of the quarter using the same scale?

- Algebra -
**Damon**, Sunday, January 9, 2011 at 7:50pm
128 * (25/20) = 128 * 5/4 = 32*5 = 160

- Algebra -
**Mike Bedell**, Wednesday, November 28, 2012 at 7:20pm
The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. a wire with length of 200 inches and a diameter of one- quarter of an inch has a resistance of 20 ohms. find the electrical resistance in a 500 inch wire withe the same diameter

## Answer This Question

## Related Questions

- 8th grade math - The diameter of the sun is approximately 1.4x10 to the power 9 ...
- Math - A quarter has a diameter of approximately 24 millimeters. What is the ...
- Physics - A hypothesis says the upper limit in frequency a human ear can hear ...
- science - An average diameter of a star is approximately 109 m and an average ...
- Math - Students in Mr. Tandoc's shop class made a circular railroad crossing ...
- Math - Students in Mr.Tandoc's shop class made a circular railroad crossing sign...
- geometry - In a game show, the prize is the amount of revolutions a coin would ...
- physical sciences - Imagine a circle with a diameter of 2km.if this represents ...
- Physics - these are practice questions that i have the answer to, but i don't ...
- Physics - a quarter sits at the bottom of a wishing well where the gauge ...

More Related Questions