document.write( "Question 630482: Bob has 39 coins in nickels and dimes he has a total of $2.45. let x represent the nickels and y represent the dimes. Which system of linear equations can be used to determine the number of dimes? \n" ); document.write( "
Algebra.Com's Answer #396981 by richwmiller(17219)\"\" \"About 
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It makes no sense to use x and y.
\n" ); document.write( "I will use n and d.
\n" ); document.write( "n+d=39
\n" ); document.write( "5n+10d=245
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