document.write( "Question 709788: How do I set up the table to find the solution to:
\n" ); document.write( "how many milliliters of pure water must be added to 100ml of a 4% salt solution to make a 2.5% solution? \n" ); document.write( "

Algebra.Com's Answer #436792 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
If you understand a formula, you can
\n" ); document.write( "set up a table
\n" ); document.write( "Let $\"+w+\"$ = ml of pure water to be added
\n" ); document.write( " $\"+.04%2A100+=+4+\"$ ml of salt in 4% solution
\n" ); document.write( "----------------
\n" ); document.write( " $\"+4+%2F+%28+w+%2B+100+%29+=+.025+\"$
\n" ); document.write( " $\"+4+=+.025%2A%28+w+%2B+100+%29+\"$
\n" ); document.write( " $\"+4+=+.025w+%2B+2.5+\"$
\n" ); document.write( " $\"+.025w+=+1.5+\"$
\n" ); document.write( " $\"+w+=+60+\"$
\n" ); document.write( "60 ml of pure water must be added.
\n" ); document.write( "Note that there is no change in the amount of salt
\n" ); document.write( "------------
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+4+%2F+%28+60+%2B+100+%29+=+.025+\"$
\n" ); document.write( " $\"+4+%2F+160+=+.025+\"$
\n" ); document.write( " $\"+.025=+.025+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

\n" );