Question 1122502

<pre>
            SPEED          TIME           DISTANCES

DOUG           r             3

ASHLEY         r           {{{2&1/2}}}

TOTAL                                       341
</pre>

Use RT=D to fill in the missing cells for the distances.  Form the sum equation for the total distance.  Solve for r.



That means,
<pre>
            SPEED          TIME           DISTANCES

DOUG           r             3             3r

ASHLEY         r           {{{2&1/2}}}     {{{(5/2)r}}}

TOTAL                                       341

{{{highlight_green(3r+(5/2)r=341)}}}
</pre>