document.write( "Question 1048731: how much water should be mixed with an 8% plant fertilizer solution to make a half gallon of a 2% plant fertilizer solution \n" ); document.write( "

Algebra.Com's Answer #664317 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = gallons of water needed
\n" ); document.write( " $\"+.5+-+x+\"$ = gallons of the 8% solution
\n" ); document.write( " $\"+.08%2A%28+.5+-+x+%29+\"$ = gallons of fertilizer in the 8% solution
\n" ); document.write( "------------------------------------
\n" ); document.write( " $\"+.08%2A%28+.5+-+x+%29+%2F+.5+=+.02+\"$
\n" ); document.write( " $\"+.08%2A%28+.5+-+x+%29+=+.01+\"$
\n" ); document.write( " $\"+.5+-+x+=+.125+\"$
\n" ); document.write( " $\"+x+=+.375+\"$
\n" ); document.write( "3/8 gallon of water needs to be added
\n" ); document.write( "---------------------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+.08%2A%28+.5+-+x+%29+%2F+.5+=+.02+\"$
\n" ); document.write( " $\"+.08%2A%28+.5+-+.375+%29+%2F+.5+=+.02+\"$
\n" ); document.write( " $\"+%28+.08%2A.125+%29%2F.5+=+.02+\"$
\n" ); document.write( " $\"+.01+=+.5%2A.02+\"$
\n" ); document.write( " $\"+.01+=+.01+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );