document.write( "Question 124646: Solve. Be sure to show the equations used for the solution.\r
\n" ); document.write( "\n" ); document.write( "Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have?\r
\n" ); document.write( "\n" ); document.write( "Let x = nickels
\n" ); document.write( "Let y = dimes\r
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\n" ); document.write( "\n" ); document.write( "Show your solution below:\r
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\n" ); document.write( "\n" ); document.write( "How many nickels?\r
\n" ); document.write( "\n" ); document.write( "How many dimes? \r
\n" ); document.write( "\n" ); document.write( "
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Algebra.Com's Answer #91361 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have?
\n" ); document.write( "Let x = nickels
\n" ); document.write( "Let y = dimes \r
\n" ); document.write( "\n" ); document.write( "-----------------------
\n" ); document.write( "EQUATIONS:
\n" ); document.write( "Quantity: x+y = 50
\n" ); document.write( "Value : 5x + 10y = 350
\n" ); document.write( "----------------------------
\n" ); document.write( "y = 50-x
\n" ); document.write( "Substitute:
\n" ); document.write( "5x + 10(50-x) = 350
\n" ); document.write( "5x + 500 - 10x = 350
\n" ); document.write( "-5x = - 150
\n" ); document.write( "x = 30 (# of nickels)
\n" ); document.write( "y = 50-x = 20 (# of dimes)
\n" ); document.write( "-------------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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