<PRE><B>Question 1145992</B>

Rupert drove home at an average rate of 625 mph. Find his rate in feet per second. Round to the nearest 10th
&lt;pre&gt;5,280 feet = 1 mile            3,600 seconds =  1 hour
Dimensional analysis method: {{{matrix(1,7, highlight(matrix(1,8, 625/1, &quot;mile(s)&quot;/&quot;hour(s)&quot;,  &quot;*&quot;, &quot;5,280&quot;/1, feet/&quot;mile(s)&quot;, &quot;*&quot;, 1/&quot;3,600&quot;, &quot;hour(s)&quot;/seconds)), 
&quot;=====&gt;&quot;, 
highlight(matrix(1,8, 625/1, cross(&quot;mile(s)&quot;)/cross(&quot;hour(s)&quot;),  &quot;*&quot;, &quot;5,280&quot;/1, feet/cross(&quot;mile(s)&quot;), &quot;*&quot;, 1/&quot;3,600&quot;, cross(&quot;hour(s)&quot;)/seconds)),
&quot;=====&gt;&quot;, 
highlight(matrix(1,2, (625 * &quot;5,280&quot;)/&quot;3,600&quot;, feet/seconds)), &quot;=&quot;, highlight(matrix(1,2, &quot;?????&quot;, &quot;feet/second&quot;
)))}}}
Just complete the calculation, manually or using a calculator!.</PRE>