Posted by **cymantha** on Monday, November 20, 2006 at 8:22pm.

Mandy runs 4km in 18min. She plans to run in a 15km race. How long will it take her to complete the race?

distance = rate x time

distance - 15 km

time = solve for this

rate = 4km/18min

4km/18 mins = 1km/4.5 mins so

15 kms x 4.5 mins = 67.5 mins

= 1 hr 7 mins 30 secs

hope that helkps ~

- math -
**Diana Dinerman**, Tuesday, December 20, 2011 at 5:56pm
Diana= math x diana/math

## Answer this Question

## Related Questions

- math - jen can run at 7.5 m/s and mary at 8.0 m/s. on a race track jen is given ...
- Math - In a triathlon, a contestant swims 5 km, cycles 30 km, and then runs 20 ...
- Physics - Two runners have a race. The first runner decides to run with his full...
- Physics - During a rElay race along a straight ROAD the 1st runner on a three ...
- Physics - If 100 m sprinters accelerate from rest for 3.5 s at 2.8 m/s^2, how ...
- Physics - A tortoise can run with a speed of 14.0 cm/s, and a hare can run ...
- Physics - A tortoise can run with a speed of 0.13 m/s, and a hare can run 20 ...
- physics - A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 ...
- Physics - A tortoise can run at a speed of 20 cm/s and a hare can run exactly 20...
- physics - A tortoise can run with a speed of 11.5 cm/s, and a hare can run 21.4 ...