Thursday

April 2, 2015

April 2, 2015

Posted by **Diana** on Saturday, July 14, 2007 at 9:50pm.

Time in each case is the same.

distance=rate*time

20=(9+vf)*time

where vf is the velocity on the freeway.

15=vt*time or time= 15/vf

put that in the first equation for time, and solve for vf. You will most likely have a quadratic equation.

**Answer this Question**

**Related Questions**

help,math - can some set the equation up for me. Science and medicine. A plane ...

algebra - During rush hour, Bill can drive 60 miles using the side roads in the ...

math,algebra - can someone just set up the equations for me for this problem. ...

Math - Please review. Ella can drive 65 mi on side roads in the same time that ...

Algebra 1--Please, help me! (Steve) - Mulitiply. Simplify your answer. 1. 3r^2t...

VNS,Math - A man walked into the road at 4 miles per hour and returned over the ...

math - your family is driving to houston,texas.A sign indicates that you are 700...

algebra - A train can travel 280 miles in the same time that it takes a car to ...

pre-algebra - your family is driving to houston,texas.A sign indicates that you ...

Pre Calculus - A motorboat travels 48 miles down a river in the same time it ...