Question 1090418
<pre>
                  SPEED         TIME         DISTANCE
JEEPNEY            30
BUS                70
Total                           3&1/2        150
</pre>




How far did Jessie travel while she was on the bus?
<pre>
                  SPEED         TIME         DISTANCE
JEEPNEY            30          (150-d)/30    150-d
BUS                70           d/70          d
Total                           3&1/2        150
</pre>
{{{highlight_green((150-d)/30+d/70=3&1/2)}}}

-

{{{(150-d)/30+d/70=7/2}}}, <i> LCD is 210</i>,

{{{7(150-d)+3d=7*105}}}

{{{1050-7d+3d=735}}}

{{{-4d=-315}}}

{{{d=315/4}}}

{{{highlight(d=78&3/4)}}}