Posted by **Audrey** on Sunday, June 17, 2007 at 3:12pm.

Tiffany can run 12 miles in the same time it takes her to bicycle 72 miles. If her bicycling rate is 20mi/hr faster than her running rate, find each rate.

Let X = running rate, so X +20 = cycling rate.

Since rate = miles/time, then time = miles/rate. Since the time for both is the same:

12/X = 72/(X + 20)

You should be able to take it from here.

I hope this helps. Thanks for asking.

## Answer This Question

## Related Questions

- intermediate algebra - You can travel 40 miles on a motorcycle in the same time ...
- college algebra - Solve the problem. A man rode a bicycle for 12 miles and then ...
- 4 Math questions! - Can you help me with a few math questions please? 1)You are ...
- math - During rush hour, Fernando can drive 20 miles using the side roads in the...
- algebra - A train can travel 280 miles in the same time that it takes a car to ...
- math,algebra - can someone just set up the equations for me for this problem. ...
- Pre Calculus - A motorboat travels 48 miles down a river in the same time it ...
- Math - In the formula d = rt, the time t varies inversely with the rate r. A ...
- Math - In the formula d = rt, the time t varies inversely with the rate r. A ...
- algebra - During rush hour, Bill can drive 60 miles using the side roads in the ...

More Related Questions