SOLUTION: A person invested $17,000 for one year,part at 10%, part at 12%, part at 15%. The total annual income from these investments was $2,110. The amount of money invested at 12% was $1,

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A person invested $17,000 for one year,part at 10%, part at 12%, part at 15%. The total annual income from these investments was $2,110. The amount of money invested at 12% was $1,      Log On


   

Question 602640: A person invested $17,000 for one year,part at 10%, part at 12%, part at 15%. The total annual income from these investments was $2,110. The amount of money invested at 12% was $1,000 less than the amount invested at 10% and 15% combined. Find the amount invested at each rate.
Answer by solver91311(24713) About Me  (Show Source):
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Solve the 3X3 system. Recommend the substitution method to eliminate y first. Then solve for z in terms of x and solve the rest by substitution as well.

John

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