SOLUTION: Udit received $900 from his parents as a graduation present. He invested part of it at 2% interest and the remainder at 10%. If the total yearly interest amounted to $50, how much

Question 930189: Udit received $900 from his parents as a graduation present. He invested part of it at 2% interest and the remainder at 10%. If the total yearly interest amounted to $50, how much did he invest at each rate?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = at 2%
y = at 10%
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x + y = 900
0.02x + 0.10y = 50
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put the system of linear equations into standard form
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x + y = 900
0.02x + 0.10y = 50
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = at 2% = 500
y = at 10% = 400
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