Posted by **megan** on Sunday, May 13, 2007 at 5:23pm.

To measure the length of a hiking trail, a worker uses a device with a 2-foot diameter wheel that counts the number of revolutions of wheel makes. If the device reads 1,100.5 revolutions at the end of the trail, how many miles long is the trail, to the nearest tenth of a mile?

circumfrence of circle is pi (3.14) times diameter

so 3.14 times 2 = 6.28

then 1100.5 times 6.28 is your answer. Remember to round to nearest tenth.

2 feet my 1100.5 revolutions =2201. feet divided by 5,280 feet per mile =.416856 of a mile or to the nearest 10th .4

## Answer this Question

## Related Questions

- math - One wheel has a diameter of 30 inches and a second wheel has a diameter ...
- Math - A bicycle has a 100 cm diameter wheel. If you ride on and around a circle...
- Physics - A bike wheel rotates uniformly through 2 revolutions in 3 seconds. a) ...
- physics - a motor cycle wheel has a diameter of 75cm.During a contest journey,...
- maths - find the number of revolutions taken by the wheel of a truck to cover a ...
- Math - A bicycle travels 42 meters for every 20 revolutions of the wheel. How ...
- Math - A bicycle travels 42 meters for every 20 revolutions of the wheel. How ...
- Math - A wheel with a diameter of 2 meters rolls on the street for 100 meters. ...
- Geometry - A wheel with a radius of 13 rolls along level ground and makes 4 1/2 ...
- math - a wheel makes 8 1/10 revolutions per minute if it rotates for 85 mins. ...