SOLUTION: aliya deposited half as much money in a saving account earning 2.5% simple interest as she invested in a money market account that earns 3.5% simple interest. total interest after

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: aliya deposited half as much money in a saving account earning 2.5% simple interest as she invested in a money market account that earns 3.5% simple interest. total interest after       Log On


   

Question 942856: aliya deposited half as much money in a saving account earning 2.5% simple interest as she invested in a money market account that earns 3.5% simple interest. total interest after 1 year is $247, how much did she invest in each account
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
x = dollar amount invested at 2.5%
y = dollar amount invested at 3.5%
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x = y/2
2x = y
0.025x + 0.035y = 247
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put the system of linear equations into standard form
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2x - y = 0
0.025x + 0.035y = 247
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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 = 2600
y = 5200
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