SOLUTION: A man invested a certain amount of money at 6% and another amount twice as as much at 8%. If his annual income from the two investments is Php 600, how much is invested at each rat

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Question 1087989: A man invested a certain amount of money at 6% and another amount twice as as much at 8%. If his annual income from the two investments is Php 600, how much is invested at each rate?
Found 2 solutions by Fombitz, MathTherapy:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!

0.06A%2B0.08B=600
B=2A
Substituting,
0.06A%2B0.08%282A%29=600
0.06A%2B0.16A=600
0.22A=600
A=600%2F0.22
A=2727.27
and
B=2A
B=5454.55

Answer by MathTherapy(10549) About Me  (Show Source):
You can put this solution on YOUR website!

A man invested a certain amount of money at 6% and another amount twice as as much at 8%. If his annual income from the two investments is Php 600, how much is invested at each rate?
Correct answer: