<PRE><B>Question 1185854</B>
&lt;br&gt;
You have received two similar responses showing solving the problem using expressions for the two speeds.&lt;br&gt;
But since the given information is that Rico&#39;s travel time is 3 hours longer than Pedro&#39;s, the problem is easier to set up and solve using times instead of speeds.&lt;br&gt;
Since Pedro drives 4 times as fast as Rico rides, Rico takes 4 times as long as Pedro to cover any particular distance.  So&lt;br&gt;
Let x = Pedro&#39;s time to drive 76 miles
Then 4x = Rico&#39;s time to ride 76 miles&lt;br&gt;
Rico&#39;s time to travel 76 miles is 3 hours longer than Pedro&#39;s:&lt;br&gt;
4x-x=3
3x=3
x=1&lt;br&gt;
Rico&#39;s time to travel 76 miles is 4x = 4 hours, so his speed is 76/4 = 19mph.&lt;br&gt;
ANSWER: 19mph&lt;br&gt;
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