Question 874587
Part I	7.00%		per annum	-------------	Amount invested =x	
Part II	8.00%		per annum	------------	Amount invested = y	
	70000					
Interest-----	5300.00					
						
Part I	7.00%		per annum	---x		
Part II	8.00%		per annum	---y		
Total investment						
x	+	1	y=	70000	-------------1	
Interest on both investments						
7.00%	x	+	8.00%	y=	5300	
Multiply by		100				
7	x	+	8	y=	530000.00	--------2
Multiply (1) by			-7			
we get						
-7	x	-7	y=	-490000.00		
Add this to (2)						
0	x	1	y=	40000		
divide by		1				
			y	=	40000	
Part I	7.00%	$	30000			
Part II	8.00%	$	40000			
						
CHECK						
30000	---------	7.00%	-------	2100.00		
40000	-------------	8.00%	-------	3200.00		
Total			--------------------	5300.00		
						
m.ananth@hotmail.ca