Saturday

April 18, 2015

April 18, 2015

Posted by **M.A.** on Thursday, June 18, 2009 at 6:39am.

- math..word problem -
**DrBob222**, Thursday, June 18, 2009 at 5:03pmtime(up) = distance/rate = d/15

time(down) = d/r = d/30

Add time up to time down to get

(d/15)+(d/30) = total time = 4.

Solve for d.

[Remember: time(up) + time(down) = 4.0 hr]

**Answer this Question**

**Related Questions**

Math - The road connecting two mountain villages goes only uphill or downhill. A...

Algebra II - A runner completes a 16 mile trip, running 8 miles uphill and 8 ...

h.s. physics - In putting, the force with which a golfer strikes a ball is ...

@elena - i noticed you helped a lot of people with their questions with physics...

algebra - Marlene rides her bycicle to her friend Jon's house and returns home ...

math - Erica's average rate going uphill was 80% of her average rate going ...

Algebra - Given a line with a slope of 4, how does the graph of the line differ ...

math - Jack and Jill run 10 kilometers. They start at the same point, run 5 ...

Math - Sigourney Weaver's average rate going uphill was 80% of her average rate ...

physics - 1. A car is coasting backwards downhill at a speed of 3.0 m/s when ...