Question 1170962
<pre>
                    SPEED      TIME       DISTANCE
RUN                  10         x          10x
BIKE                 24       1.25-x     24(1.25-x)
Total                          1.25         23
</pre>
{{{highlight_green(10x+24(1.25-x)=23)}}}


{{{10x+30-24x=23}}}
{{{-14x=-7}}}
{{{highlight(x=1/2)}}}-----------time bicycling, in hours


{{{highlight(0.75)}}}---------time in hours, running