document.write( "Question 1090276: Bubba has 20 American coins, all quarters (25 cent coins) and dimes (10 cent coins). If the total value of his money is $ 3.05, how many of each type of coin does he have? \r
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Algebra.Com's Answer #704717 by ikleyn(52803)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Let Q be the number of quarters.\r\n" );
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document.write( "Then the number of dimes is (20-Q), according to the condition.\r\n" );
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document.write( "The quarters contribute 25Q cents to the total.\r\n" );
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document.write( "The dimes contribute 10*(20-Q) cents to the total.\r\n" );
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document.write( "Your \"value\" equation is\r\n" );
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document.write( "25Q + 10*(20-Q) = 305   cents.\r\n" );
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document.write( "Simplify and solve for Q:\r\n" );
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document.write( "25Q + 200 - 10Q = 305  ====>  15Q = 305 - 200 = 105  ====>  Q = \"105%2F15\" = 7.\r\n" );
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document.write( "Answer.  7 quarters and  (20-7) = 13 dimes.\r\n" );
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document.write( "Check.   7*25 + 13*10 = 175 + 130 = 305 cents.   ! Correct !\r\n" );
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\n" ); document.write( "\n" ); document.write( "There is entire bunch of lessons on coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Coin problems\r
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\n" ); document.write( "\n" ); document.write( "    - Solving coin problems without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Kevin and Randy Muise have a jar containing coins\r
\n" ); document.write( "\n" ); document.write( "    - Typical coin problems from the archive\r
\n" ); document.write( "\n" ); document.write( "    - More complicated coin problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving coin problems mentally by grouping without using equations\r
\n" ); document.write( "\n" ); document.write( "    - Santa Claus helps solving coin problem\r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on coin word problems\r
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\n" ); document.write( "\n" ); document.write( "You will find there the lessons for all levels - from introductory to advanced,
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution of coin problems.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Coin problems\".\r
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