Question 452429
rate------amount----interest
5% ------- x -------0.05x
8%---------y--------0.08y

x=y+2400
x-y=2400............1
0.05x+0.08y=710.20...2

x-y=2400	.............1	
0.05x+0.08y=710.2.............2	
Eliminate y								
multiply (1)by 	0.08						
Multiply (2) by	1						
0.08x-0.08y=192		
0.05x+0.08y=710.20		
Add the two equations								
0.13	x				=	902.2		
/0.13							
x=	6,940.00						
plug value of 			x	in (1)				
x-y=2400		
6940-y=2400		
-y=2400-6940
-y=-4540		
y=4540.00		
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