document.write( "Question 105933: A piggybank has a total of 30 coins made up of nickels and dimes. The total value of the piggybank's contents is $2.40. Let x represent the number of nickels. \n" ); document.write( "
Algebra.Com's Answer #77086 by scott8148(6628)\"\" \"About 
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so 30-x=dimes\r
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\n" ); document.write( "\n" ); document.write( "5x+10(30-x)=240
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