document.write( "Question 669185: the sum of the reciprocals of two number is 5/8. four times the reciprocal of the first is twice as much as eight times the reciprocal of the second. find the numbers. \n" ); document.write( "
Algebra.Com's Answer #416210 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Write an equation for each statement; the two numbers are a & B \n" ); document.write( ": \n" ); document.write( " the sum of the reciprocals of two number is 5/8. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " four times the reciprocal of the first is twice as much as eight times the reciprocal of the second. \n" ); document.write( " \n" ); document.write( "which is \n" ); document.write( " \n" ); document.write( "cross multiply \n" ); document.write( "4b = 16a \n" ); document.write( "divide both sides by 4 \n" ); document.write( "b = 4a \n" ); document.write( ": \n" ); document.write( "find the numbers. \n" ); document.write( "Back to the 1st equation, replace b with 4a \n" ); document.write( " \n" ); document.write( "multiply by 8a, results: \n" ); document.write( "8 + 2 = 5a \n" ); document.write( "10 = 5a \n" ); document.write( "a = 2 \n" ); document.write( "then \n" ); document.write( "b = 4*2 \n" ); document.write( "b = 8 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "See if that checks out \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |