document.write( "Question 517697: A child's bank contains $6.30 in dimes and quarters. There are twice as many dimes as quarters. How many of each kind of coin are in the bank? \n" ); document.write( "
Algebra.Com's Answer #344885 by richwmiller(17219)\"\" \"About 
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d=2q
\n" ); document.write( "10d+25q=630
\n" ); document.write( "10*2q+25q=630
\n" ); document.write( "20q+25q=630
\n" ); document.write( "45q=630
\n" ); document.write( "q=14
\n" ); document.write( "d=28
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\n" ); document.write( "14*25=250+100=350
\n" ); document.write( "10*28=280
\n" ); document.write( "350+280=630
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