amount at 4% --- x
amount at 3% --- 15000 - x
solve for x ....
.04x + .03(15000-x) = 550
has inherited $15,000 that she wants to invest in two separate accounts, one paying 4%
and one paying 3% annual interest. If the total interest earned for a year is $550, how much
should she invest at each rate?
1 answer