Friday

August 22, 2014

August 22, 2014

Posted by **wan** on Saturday, March 16, 2013 at 7:06am.

- math -
**Reiny**, Saturday, March 16, 2013 at 7:28amtime to go home at 40 km/h --- d/40 hours

time to go home at 60 km/h --- d/60 hours

d/40 - d/60 = 2 (there is a 2 hr difference in the two times)

time 120

3d - 2d = 240

d = 240

so the two times are 240/40 and 240/60

or 6 and 4 hours,

so he wants to take 5 hours

speed = 240/5 = 48 km/h

**Related Questions**

math - Chuong and Hassan both drive 40km from home to work each day. One day, ...

Math - A woman went for a 48km drive in her car, partly in town in the country. ...

Pre calculus - A woman went for a 48km drive in her car, partly in town in the ...

math - Issa IS driving to the airport to catch a flight to Miami, and Her ...

Math - Issa is driving to the airport to catch a flight to Miami, and her ...

math - 17. Burger King's Drive-Through: Suppose that cars arrive at Burger King'...

math - Alicia's family decides to visit her grandmother who lives 163miles away...

math - On a 9-hour trip home from winter break, Mary was forced to drive on a ...

Math - Paul drove from his house to work at an average speed of 40 miles per ...

math - Carl drove from his house to work at an average speed of 35 miles per ...