document.write( "Question 121687: I have a question on a story problem...
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document.write( "Mary has a total of $4.75 in her bank. There are 39 coins in all: some are dimes are some are quarters. How many coins of each are there in her bank?
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document.write( "please
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document.write( "d+q=39
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document.write( "10d+25q=475
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document.write( "
Algebra.Com's Answer #89334 by stanbon(75887) ![]() You can put this solution on YOUR website! Mary has a total of $4.75 in her bank. There are 39 coins in all: some are dimes are some are quarters. How many coins of each are there in her bank? \n" ); document.write( "please \n" ); document.write( "------------------- \n" ); document.write( "d+q=39 \n" ); document.write( "10d+25q=475 \n" ); document.write( "------------ \n" ); document.write( "d=39-q \n" ); document.write( "Substitute to solve for \"q\": \n" ); document.write( "10(39-q)+25q=475 \n" ); document.write( "390-10q+25q=475 \n" ); document.write( "15q = 85 \n" ); document.write( "------------- \n" ); document.write( "Comment: q does not become a whole number. \n" ); document.write( "Check your statement of the problem. \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |