document.write( "Question 1060080: What is the value of k for the inverse variation function where y is equal to 13 and your x value is 39? \r
\n" ); document.write( "\n" ); document.write( "I have no clue in whats going on. \n" ); document.write( "

Algebra.Com's Answer #675081 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The inverse variation would be:
\n" ); document.write( " $\"+y+=+k%2A%28+1%2Fx%29+\"$
\n" ); document.write( "Then they say:
\n" ); document.write( " $\"+x+=+39+\"$
\n" ); document.write( " $\"+y+=+13+\"$
\n" ); document.write( "------------------
\n" ); document.write( " $\"+13+=+k%2A%28+1%2F39+%29+\"$
\n" ); document.write( "Multiply both sides by $\"+39+\"$
\n" ); document.write( " $\"+k+=+13%2A39+\"$
\n" ); document.write( " $\"+k+=+507+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "By the logic of an inverse variation, if I
\n" ); document.write( "double $\"+x+\"$ , then $\"+y+\"$ should be $\"+1%2F2+\"$
\n" ); document.write( "of what it was before
\n" ); document.write( "-----------------------
\n" ); document.write( "I'll say $\"+x+=+78+\"$ ( twice $\"+39+\"$ )
\n" ); document.write( "Then
\n" ); document.write( " $\"+y+=+k%2A%28+1%2F78+%29+\"$
\n" ); document.write( " $\"+y+=+507%2A%281%2F78%29+\"$
\n" ); document.write( " $\"+y+=+6.5+\"$ ( which is half of what it was, $\"+13+\"$ )
\n" ); document.write( "------------------------
\n" ); document.write( "Hope this makes some kind of sense
\n" ); document.write( " \n" ); document.write( "

\n" );