document.write( "Question 67915This question is from textbook Algebra:Structure and Method
\n" ); document.write( ": The sum of the reciprocals of two consecutive even integers is 11/60. Find the integers. \n" ); document.write( "
Algebra.Com's Answer #48294 by funmath(2933)\"\" \"About 
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The sum of the reciprocals of two consecutive even integers is 11/60. Find the integers.
\n" ); document.write( "Let the first even integer be:x
\n" ); document.write( "Then the next even integer is: x+2
\n" ); document.write( "The reciprocal of x=1/x
\n" ); document.write( "The reciprocal of x+2=1/(x+2)
\n" ); document.write( "Sum means add:
\n" ); document.write( "\"1%2Fx%2B1%2F%28x%2B2%29=11%2F60\" The LCD is 60x(x+2), multiply everything by that.
\n" ); document.write( "\"60x%28x%2B2%29%2A1%2Fx%2B60x%28x%2B2%29%2A1%2F%28x%2B2%29=60x%28x%2B2%29%2A11%2F60\" cancel any matching numerators and denominators.
\n" ); document.write( "\"60%28x%2B2%29%2B60x=11x%28x%2B2%29\"
\n" ); document.write( "\"60x%2B120%2B60x=11x%5E2%2B22x\"
\n" ); document.write( "\"120x%2B120=11x%5E2%2B22x\" set = to 0
\n" ); document.write( "\"120x-120x%2B120-120=11x%5E2%2B22x-120x-120\"
\n" ); document.write( "\"0=11x%5E2-98x-120\" Factor
\n" ); document.write( "\"0=11x%5E2-110x%2B12x-120\"
\n" ); document.write( "\"0=11x%28x-10%29%2B12%28x-10%29\"
\n" ); document.write( "\"0=%2811x%2B12%29%28x-10%29\" set each parentheses =0 and solve for x.
\n" ); document.write( "\"11x%2B12=0\" or \"x-10=0\"
\n" ); document.write( "\"11x%2B12-12=0-12\" or \"x-10%2B10=0%2B10\"
\n" ); document.write( "\"11x=-12\" or \"x=10\"
\n" ); document.write( "\"11x%2F11=-12%2F11\" or \"x=10\"
\n" ); document.write( "\"x=-12%2F11\" or \"x=10\"
\n" ); document.write( "-12/11 is not an integer so reject it.
\n" ); document.write( "x=10
\n" ); document.write( "Therefore the first integer is: \"highlight%28x=10%29\"
\n" ); document.write( "and the second integer is \"highlight%28x%2B2=10%2B2=12%29\"
\n" ); document.write( "Sanity check:
\n" ); document.write( "does the reciprocal of 10 and 12 = 11/60?
\n" ); document.write( "\"1%2F10%2B1%2F12=11%2F60\"
\n" ); document.write( "\"6%2F60%2B5%2F60=11%2F60\"
\n" ); document.write( "\"11%2F60=11%2F60\" We're right!!!
\n" ); document.write( "Happy Calculating!!!!
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