<PRE><B>Question 558146</B>
Phyllis	x 	mph						
Stanley	x+	-15						
..								
They are going away from each other.								
								
So add up their speed.								
								
combined speed = x+x-15			
(2x-15	) 			
Time = 	2      	hours						
Distance =   	146	miles						
Distance = speed * time								
(	2	x		-15	)*	2    	=	146
4	x 		-30	=	146			
4	x 	=	146	+	30			
4	x 	=	176					
/	4							
x=	44	mph	Phyllis					
Stanley	44	+	-15	=	29	mph		
</PRE>