Question 1161894
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If they are traveling toward each other, then their speed of approach is the sum of their individual speeds.  The speed of approach is the distance they were apart at the start divided by the time it took for them to meet. Let *[tex \Large r_T] represent the speed of approach and *[tex \Large r] represent the speed of the slower driver.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ r\ +\ (r\ +\ 8)\ =\ r_T]


Calculate the value of *[tex \Large r_T], then use that value in the above equation and solve for *[tex \Large r].  Then calculate *[tex \Large r\ +\ 8]
								
								
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
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