document.write( "Question 985237: If johny has twice as many dimes as quarter, amounting to $6.75 in all, how many coins does he have? \n" ); document.write( "

Algebra.Com's Answer #606065 by ikleyn(52788) $\"\"$ $\"About$

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\n" ); document.write( "Let q be the number of quarters Johny has.\r
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\n" ); document.write( "\n" ); document.write( "Then the number of dimes in his possession is 2q. \r
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\n" ); document.write( "\n" ); document.write( "Thus you have an equation\r
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\n" ); document.write( "\n" ); document.write( "25q + 10*2q = 675.\r
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\n" ); document.write( "\n" ); document.write( "Solve it:\r
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\n" ); document.write( "\n" ); document.write( "(25 + 20)q = 675,\r
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\n" ); document.write( "\n" ); document.write( "45q = 675,\r
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\n" ); document.write( "\n" ); document.write( "q = $\"675%2F45\"$ = 15. \r
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\n" ); document.write( "\n" ); document.write( "So, Johny has 15 quarters and 2*15 = 30 dimes. \r
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\n" ); document.write( "\n" ); document.write( "Check: 15*25 c + 30*10 c = 675 c.\r
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