document.write( "Question 85407: If one-half of a number is added to one-third of the next consecutive number, the sum is 67. What are the two numbers? \n" ); document.write( "
Algebra.Com's Answer #61574 by bucky(2189)![]() ![]() ![]() You can put this solution on YOUR website! If x is the unknown number, then the next consecutive number is x + 1. \n" ); document.write( ". \n" ); document.write( "If one-half of the unknown number (that is (1/2)*x) is added to one-third of the next \n" ); document.write( "consecutive number (that is (1/3)*(x + 1)) the sum is 67. \n" ); document.write( ". \n" ); document.write( "In equation form this can be written as: \n" ); document.write( ". \n" ); document.write( "(1/2)*x + (1/3)*(x + 1) = 67 \n" ); document.write( ". \n" ); document.write( "Multiply out the distributed multiplication on the left side to get: \n" ); document.write( ". \n" ); document.write( "(1/2)*x + (1/3)*x + (1/3) = 67 \n" ); document.write( ". \n" ); document.write( "Get rid of the denominators by multiplying everything in this equation by the common \n" ); document.write( "denominator of 2*3 or 6. If you multiply all the terms by 6 the result is: \n" ); document.write( ". \n" ); document.write( "(6/2)*x + (6/3)*x + (6/3) = 67 * 6 \n" ); document.write( ". \n" ); document.write( "which simplifies to: \n" ); document.write( ". \n" ); document.write( "3*x + 2*x + 2 = 402 \n" ); document.write( ". \n" ); document.write( "The x terms can be added together to get: \n" ); document.write( ". \n" ); document.write( "5*x + 2 = 402 \n" ); document.write( ". \n" ); document.write( "Subtract 2 from both sides: \n" ); document.write( ". \n" ); document.write( "5*x = 400 \n" ); document.write( ". \n" ); document.write( "Divide both sides by 5 and you get: \n" ); document.write( ". \n" ); document.write( "x = 80 \n" ); document.write( ". \n" ); document.write( "that means that the next consecutive integer is 81. So the two numbers are 80 and 81. \n" ); document.write( ". \n" ); document.write( "Check: \n" ); document.write( ". \n" ); document.write( "Does one-half of 80 when added to one-third of 81 = 67? \n" ); document.write( ". \n" ); document.write( "One-half of 80 is 40 and one-third of 81 is 27. Adding 40 and 27 does result in 67, so \n" ); document.write( "the two numbers 80 and 81 do satisfy the problem. \n" ); document.write( ". \n" ); document.write( "Hope this helps. \n" ); document.write( " |