document.write( "Question 959248: Bob has 31 coins totalling $2.50. If he has only nickels and dimes, how many of each coin does he have?
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Algebra.Com's Answer #586337 by Alan3354(69443)\"\" \"About 
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Bob has 31 coins totalling $2.50. If he has only nickels and dimes, how many of each coin does he have?
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\n" ); document.write( "n + d = 31
\n" ); document.write( "5n + 10d = 250
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