Distance Rate and Time

Question

Two cyclists start at the same point and travel in opposite directions. One cyclist travels
4

/mih
faster than the other. If the two cyclists are
84mi
apart after
3
hours, what is the rate of each cyclist?

Answer 1

Colin, let's think about this.

 

Let's let r = the rate of one cyclist.  The other is then r +4, right?

 

Distance equals rate x time, and we know they travelled 84 miles, total, so

 

3(r + r + 4) = 84.

 

Can you solve for r from here and figure out both times?