Question 430859
Part I	4.00%		per annum						
Part II	4.50%		per annum						
									
x+y=25000	------------------------1				
4.00%x+4.50%y=$1,060.00			
Multiply by 	100							
4x+4.5y=$106,000.00		--------2	
									
Multiply (1) by	-4						
we get									
									
-4x-4y=-100000.00			
									
Add this to (2)									
									
0.5y=$6,000.00			
									
divide by0.5							
									
y=$12,000.00 investment at 	4.50%
Balance	$13,000.00	investment at 	4.00%
...............

Length = l
width =l-40
perimeter = 2*(l+w)
Perimeter = 2(l+l-40)
Perimeter = 4l-80
360= 4l-80
4l=440
l=110 in
width = 70 in