Sunday
March 26, 2017

Post a New Question

Posted by on .

Her average rate traveling uphill was 1.8 kilometers per hour and her average rate down hill was 4.2 kilometers per hour. If she spent a total of 16 hours hiking, how long was the trail?

  • algebra - ,

    add up the times to hike d km:

    d/1.8 + d/4.2 = 16
    0.5555d + .2381d = 16
    d = 16/.7936 = 20.16 km

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question