document.write( "Question 1138229: Someone please help..
\n" ); document.write( "Big tipper. On Monday Headley paid $1.70 for two cups of coffee and one doughnut, including the tip. On Tuesday he paid $1.65 for two doughnuts and a cup of coffee, including the tip. On Wednesday he paid $1.30 for one coffee and one doughnut, including the tip. If he always tips the same amount, then what is the amount of each item?
\n" ); document.write( "I know how to do the math but I have no idea what the three equations would be... please help \n" ); document.write( "

Algebra.Com's Answer #756061 by ikleyn(52777) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "1) compare Monday and Wednesday:\r\n" );
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document.write( "   Monday    :   2 coffee and 1 doughnut  PLUS tip    $1.70\r\n" );
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document.write( "   Wednesday :   1 coffee and 1 doughnut  PLUS tip    $1.30\r\n" );
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document.write( "  -----------------------------------------------------------  The difference is\r\n" );
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document.write( "                 1 coffee                              $0.40    ANSWER\r\n" );
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document.write( "2)  compare Tuesday and Wednesday:\r\n" );
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document.write( "    Tuesday   :   1 coffee and 2 doughnut  PLUS tip    $1.65\r\n" );
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document.write( "    Wednesday :   1 coffee and 1 doughnut  PLUS tip    $1.30\r\n" );
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document.write( "  -----------------------------------------------------------  The difference is\r\n" );
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document.write( "                               1 doughnut              $0.35    ANSWER\r\n" );
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