Question 475255
Saleri		x				220	miles			
Amadeus		x	40			760	miles			
										
t=d/r						
2*(220	/	x)	=	760	/	(	x	+	40	)
Cross multiply										
440	(	x	+	40	)	=	760	*	x	
440	x	+	17600	=	760	x				
760	x		-440	x	=	17600				
320	x	=	17600							
/	320									
x 	=	55	Saleri	mph						
		95	Amadeus	mph	
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