document.write( "Question 438776: please solve this problem:
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document.write( "A part of monthly hostel charges is fixed and the remaining depend on the number of the days one has taken food in the mess. when a student A takes food for 20 days she has to pay Rs. 1000 as hostel charges where as a student B who takes food for 26 days , pay rs 1180 as hostel charges. find the fixed charges and the cost of food perday \n" );
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Algebra.Com's Answer #303328 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A part of monthly hostel charges is fixed and the remaining depend on the number of the days one has taken food in the mess. \n" ); document.write( "-------------------------- \n" ); document.write( "when a student A takes food for 20 days she has to pay Rs. 1000 as hostel charges \n" ); document.write( "where as a student B who takes food for 26 days , pay rs 1180 as hostel charges. \n" ); document.write( "find the fixed charges and the cost of food perday \n" ); document.write( "----- \n" ); document.write( "A Equation: \n" ); document.write( "fixed + 20x = 1000 \n" ); document.write( "--- \n" ); document.write( "B Equation: \n" ); document.write( "fixed + 26x = 1180 \n" ); document.write( "------------------------ \n" ); document.write( "Subtract and solve for \"x\" \n" ); document.write( "6x = 180 \n" ); document.write( "x = 30 per day (daily cost for food) \n" ); document.write( "--- \n" ); document.write( "Solve for \"fixed\": \n" ); document.write( "f + 20x = 1000 \n" ); document.write( "f + 20*30 = 1000 \n" ); document.write( "f + 600 = 1000 \n" ); document.write( "fixed cost = 400 \n" ); document.write( "========================= \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |