Question 983917
<pre>

              rate            time       distance
ADAM           r              t+3        (   )
CARLOS        r-30             1         (   )
Total                                    370
</pre>


Understanding the description indicates t=1.  Revise the data table, including uniform rates rule usage.


<pre>

              rate            time       distance
ADAM           r              1+3        (r*4)
CARLOS        r-30             1         (r-30)
Total                                    370

</pre>


{{{4r+(r-30)=370}}}
Solve for r.