SOLUTION: Rico invests some of his savings at 4% per year and an equal amount at 5 percent per year. His income totals Php 1800 a year. How much did Rico invest at each Rate ?
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Question 934985: Rico invests some of his savings at 4% per year and an equal amount at 5 percent per year. His income totals Php 1800 a year. How much did Rico invest at each Rate ? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = amount invested at 4%
y = amount invested at 5%
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x = y
0.04x + 0.05y = 1800
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put the system of linear equations into standard form
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x - y = 0
0.04x + 0.05y = 1800
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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 = amount invested at 4% = 20000
y = amount invested at 5% = 20000
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