SOLUTION: Juan has .80 in nickels and dimes. He has twice as many nickels as dimes. How many nickels and how many dimes does he have?

Question 831701: Juan has .80 in nickels and dimes. He has twice as many nickels as dimes. How many nickels and how many dimes does he have?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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5x + 10y = 80
x = 2y
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put the system of linear equations into standard form:
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5x + 10y = 80
x - 2y = 0
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = nickels = 8
y = dimes = 4
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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