document.write( "Question 762822: If 2/5 of a number exceeds 1/7 of the same number by 36.
\n" ); document.write( "Find the number. \n" ); document.write( "

Algebra.Com's Answer #464215 by josmiceli(19441) $\"\"$ $\"About$

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Let the number = $\"+n+\"$
\n" ); document.write( "given:
\n" ); document.write( " $\"+%28+2%2F5+%29%2An+=+%28+1%2F7+%29%2An+%2B+36+\"$
\n" ); document.write( "Subtract $\"+%28+1%2F7+%29%2An+\"$ from both sides
\n" ); document.write( " $\"+%28+2%2F5+%29%2An+-+%28+1%2F7+%29%2An+=+36+\"$
\n" ); document.write( "Multiply both sides by $\"+35+\"$
\n" ); document.write( " $\"+35%2A%28+2%2F5+%29%2An+-+35%2A%28+1%2F7+%29%2An+=+35%2A36+\"$
\n" ); document.write( " $\"+14n+-+5n+=+1260+\"$
\n" ); document.write( " $\"+9n+=+1260+\"$
\n" ); document.write( " $\"+n+=+140+\"$
\n" ); document.write( "--------------
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+2%2F5+=+.4+\"$
\n" ); document.write( " $\"+1%2F7+=+.14286+\"$
\n" ); document.write( " $\"+%28+2%2F5+%29%2An+=+%28+1%2F7+%29%2An+%2B+36+\"$
\n" ); document.write( " $\"+.4%2A140++=+.14286%2A140+%2B+36+\"$
\n" ); document.write( " $\"+56+=+20.0004+%2B+36+\"$
\n" ); document.write( " $\"+56+=+56.0004+\"$
\n" ); document.write( "OK -error due to rounding off\r
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