Question 1063305
<pre>
                   RATE             TIME            DISTANCE

First Part          r                {{{1/2}}}

Second Part        r+10             {{{1&1/2}}}

Total
</pre>


RULE:  RT=D relates rate R, time T, distance D.



Fill-in the missing parts.
<pre>
                   RATE             TIME            DISTANCE

First Part          r                {{{1/2}}}           {{{r/2}}}

Second Part        r+10             {{{1&1/2}}}         {{{(r+10)(3/2)}}}

Total                                             {{{highlight(r/2+(r+10)(3/2))}}}
</pre>


Simplify the expression for the total distance.