SOLUTION: An investment of ​$67,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned​ 8%

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Question 1066778: An investment of ​$67,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned​ 8% interest, the second​ 6%, and the third​ 9%. Total interest from the investments was $5190.The interest from the first investment was 3 times the interest from the second. Find the amounts of the three parts of the investment.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Parts x, y, z

system%28x%2By%2Bz=67000%2C0.08x%2B0.06y%2B0.09z=5190%2Cx%2Fy=3%29

Choose your method and steps, and solve the system.