document.write( "Question 1200579: A hotel has 150 rooms. The charges for a double room and a single room are $270 per night and $150 per night respectively. On a night when the hotel was completely occupied, revenues were $33,300. Which pair of equations can be used to determine the number of double room, d, and the number of single room, s, in the hotel? \n" ); document.write( "
Algebra.Com's Answer #834735 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "A hotel has 150 rooms. The charges for a double room and a single room are $270 per night
\n" ); document.write( "and $150 per night respectively. On a night when the hotel was completely occupied,
\n" ); document.write( "revenues were $33,300. Which pair of equations can be used to determine the number
\n" ); document.write( "of double room, d, and the number of single room, s, in the hotel?
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document.write( "First equation is\r\n" );
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document.write( "    d + s = 150  rooms,\r\n" );
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document.write( "counting for the rooms.\r\n" );
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document.write( "Second equation is\r\n" );
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document.write( "    270*d + 150*s = 33300  dollars,\r\n" );
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document.write( "counting for the total revenue.\r\n" );
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\n" ); document.write( "\n" ); document.write( "            In short form,  write equations as you read the problem.\r
\n" ); document.write( "\n" ); document.write( "            When you read the problem,  think how to write equations.\r
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