Question 570744
Dana	x					129	miles			
Chuck	x+	8				147	miles			
The time taken by them is the same										
t=d/r										
129	/	x	=	147	/(x+	8	)			
Cross multiply										
129	(x	+	8	)		=	147	*	x	
129	x	+	1032	=	147	x				
147	x		-129	x	=	1032				
18	x	=	1032							
/	18									
x 	=	57.33	Dana	mph						
		65.33	Chuck	mph