document.write( "Question 263523: A tropical fish store has 20 gallons of 15% salt solution. How many gallons of a 8% salt solution must be added to produce a 10% salt solution? \n" ); document.write( "

Algebra.Com's Answer #194196 by josmiceli(19441) $\"\"$ $\"About$

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In words:
\n" ); document.write( "(amount of salt in final solution)/(total gallons in final solution) = 10%
\n" ); document.write( "Let $\"x\"$ = gallons of 8% solution that need to be added
\n" ); document.write( " $\"%28.15%2A20+%2B+.08x%29%2F%2820+%2B+x%29+=+.1\"$
\n" ); document.write( " $\".15%2A20+%2B+.08x+=+.1%2A%2820+%2B+x%29\"$
\n" ); document.write( " $\"3+%2B+.08x+=+2+%2B+.1x\"$
\n" ); document.write( " $\".02x+=+1\"$
\n" ); document.write( " $\"x+=+50\"$
\n" ); document.write( "50 gallons of 8% solution need to be added
\n" ); document.write( "check answer:
\n" ); document.write( " $\"%28.15%2A20+%2B+.08x%29%2F%2820+%2B+x%29+=+.1\"$
\n" ); document.write( " $\"%28.15%2A20+%2B+.08%2A50%29%2F%2820+%2B+50%29+=+.1\"$
\n" ); document.write( " $\"%283+%2B+4%29%2F%2820+%2B+50%29+=+.1\"$
\n" ); document.write( " $\"7%2F70+=+.1\"$
\n" ); document.write( " $\".1+=+.1\"$
\n" ); document.write( "OK \n" ); document.write( "

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