document.write( "Question 558665: Can you help me understand how to solve this word problem?\r
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document.write( "An airplane has a total of 152 seats.
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document.write( "The number of coach-class seats is 5 more than six
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document.write( "times the number of first-class seats. How many of
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document.write( "each type of seat are there on the plane? \n" );
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Algebra.Com's Answer #363129 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! An airplane has a total of 152 seats. \n" ); document.write( "The number of coach-class seats is 5 more than six \n" ); document.write( "times the number of first-class seats. How many of \n" ); document.write( "each type of seat are there on the plane? \n" ); document.write( "----------- \n" ); document.write( "Seats Equation: f + c = 152 \n" ); document.write( "Seats Equation: c = 6f + 5 \n" ); document.write( "-------- \n" ); document.write( "Substitute for \"c\" and solve for \"f\": \n" ); document.write( "f + (6f+5) = 152 \n" ); document.write( "7f = 147 \n" ); document.write( "f = 21 (# of 1st class seats) \n" ); document.write( "----- \n" ); document.write( "Solve for \"c\": \n" ); document.write( "f + c = 152 \n" ); document.write( "21 + c = 152 \n" ); document.write( "c = 131 (# of coach-class seats) \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " \n" ); document.write( " |