document.write( "Question 455785: I need help solving this word problem, There are 23 coins in a bank. All the coins are dimes and quarters. The total value of the coins is $3.80. How many dimes are there? How many quarters?
\n" ); document.write( "I have choices for my answers but i cant figure out how to lay out the equation in numbers.\r
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Algebra.Com's Answer #312893 by ankor@dixie-net.com(22740)\"\" \"About 
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There are 23 coins in a bank. All the coins are dimes and quarters.
\n" ); document.write( " The total value of the coins is $3.80.
\n" ); document.write( " How many dimes are there?
\n" ); document.write( " How many quarters
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\n" ); document.write( "We can write two equations here
\n" ); document.write( "total coins
\n" ); document.write( "d + q = 23
\n" ); document.write( "put this in the form for substitution
\n" ); document.write( "d = (23-q)
\n" ); document.write( "and value equation
\n" ); document.write( ".10d + .25q = 3.80
\n" ); document.write( "now substitute (23-q) for d in the above equation solve for d, then find q
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