|
||||||||||||
|
||||||||||||
| ||||||||||||
Hi Liz, Suppose she runs for $x$ miles then she cycles for $20 - x$ miles. Since she runs at $5$ mph the time for the run is $\large \frac{x}{5}$ hours. How long does she cycle? The sum of these two time is 2.25 hours. Solve for $x.$ Penny | ||||||||||||
|
||||||||||||
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. |