My mother divides one hundred thousand pesos in 3 investments: @ four %, five % and @ six % respectively. Her?
income is four thousand nine hundred pesos. Her income from 5% and 6% investments exceeds the income @ 4% by P2500.00.
FIND: how much is invested @ each rate?
You may also just write the equations...
no need for solutions.
clue: this problem is in 3 equations with 3 unknowns (obviously).
No one got this right, so I'm gonna give others a chance,,,
good luck!
2007-09-07 11:54:56 · 1 answers · asked by Sammy 1 in Science & Mathematics ➔ Mathematics
The three amounts we will call a, b, and c. I am dividing by 1000 to save space.
a + b + c = 100
.04a + .05b + .06c = 4.9
.05b + .06c = .04a + 2.5
If you actually solve this system, then
a = 30, b = 50, and c = 20 (in thousands of pesos, of course).
2007-09-07 12:38:05 · answer #1 · answered by Mathsorcerer 7 · 0⤊ 0⤋