document.write( "Question 927478: Katie has a collection of nickels, dimes and quarters with a total value of $8.15. There are 8 more dimes than nickels and 7 more quarters than nickels, how many of each coin does she have? \n" ); document.write( "

Algebra.Com's Answer #562991 by TimothyLamb(4379) $\"\"$ $\"About$

You can put this solution on YOUR website!
x = nickels
\n" ); document.write( "y = dimes
\n" ); document.write( "z = quarters
\n" ); document.write( "---
\n" ); document.write( "5x + 10y + 25z = 815
\n" ); document.write( "y = x + 8
\n" ); document.write( "z = x + 7
\n" ); document.write( "---
\n" ); document.write( "put the system of linear equations into standard form
\n" ); document.write( "---
\n" ); document.write( "5x + 10y + 25z = 815
\n" ); document.write( "x - y = -8
\n" ); document.write( "x - z = -7
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
\n" ); document.write( "---
\n" ); document.write( "solution:
\n" ); document.write( "x = nickels = 14
\n" ); document.write( "y = dimes = 22
\n" ); document.write( "z = quarters = 21
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "

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