document.write( "Question 338395: a coin bank contains 25 coins in nickels,dimes,and quarters. There are four times as many dimes as quarters.The value of the coins is $2.05. How many dimes are in the bank?\r
\n" ); document.write( "\n" ); document.write( "please and thank you... i cant figure it out my book says its supose to be 8 dimes but im not getting how it got that answer. \n" ); document.write( "

Algebra.Com's Answer #242557 by stanbon(75887) $\"\"$ $\"About$

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a coin bank contains 25 coins in nickels,dimes,and quarters. There are four times as many dimes as quarters.The value of the coins is $2.05. How many dimes are in the bank?
\n" ); document.write( "-------
\n" ); document.write( "Equations:
\n" ); document.write( "Quantity Eq:::: n + d + q = 25
\n" ); document.write( "Quantity Eq:::: d = 4q
\n" ); document.write( "Value Eq:::::::5n +10d+25q = 205
\n" ); document.write( "-------
\n" ); document.write( "Rearrange:
\n" ); document.write( "n + d + q = 25
\n" ); document.write( "0 + d -4q = 0
\n" ); document.write( "5n+10d+25q= 205
\n" ); document.write( "----------------------
\n" ); document.write( "Use any method you know to solve the system to get:
\n" ); document.write( "# of nickels = 15
\n" ); document.write( "# of dimes = 8
\n" ); document.write( "# of quarters= 2
\n" ); document.write( "=====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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