Question 412382
x = amount of money invested at 4%
2*x = amount of money invested at 5%


yearly income = 350.


.04*x + .05*2*x = 350


factor out the x to get:


x * (.04 + .05*2) = 350


simplify to get:


x * (.14) = 350


divide both sides by .14 to get:


x = 350 / .14 = 2500


that makes 2x = 5000


she invested 2500 at 4% and 5000 at 5%


.04 * 2500 + .05 * 5000 = 100 + 250 = 350


Answer is confirmed.


she invested 2500 at 4% and 5000 at 5%.