Question 262885
Website rules reminder:
one problem per submission
limit 4 submissions daily
no similar problems
Now to problem #2

5500*.049=269.50
5500 dollars yields $269.50
269.50+x*.074=(5500+x)*.064
x=$8250 must be invested at 7.4% so that the total 8250+5500 yields 6.4%
(8250+5500)*.064=880
.074*8250=610.50
$8250 yields $610.50 at 7.4%
269.50+610.50=880
$8250 must be invested at 7.4%