document.write( "Question 413142: how many cups of an 18% salt solution must be added to 16 cups of a 25% solution to get a 20% solution \n" ); document.write( "

Algebra.Com's Answer #290022 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( "Let x represent the number of cups of the 18$ solution
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document.write( "Question states*** \"Mixing\"
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document.write( " .18x + .25*16 = .20(16+x)
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document.write( "Solving for x
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document.write( "  18x + 25*16 = 20(16+x)   |multiplying thru by 100
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document.write( "        5*16 =  2x
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document.write( "        40 = x            
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document.write( "CHECKING our Answer***
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document.write( " .18*40 + .25*16 = 7.2 + 4 = 11.2 = .20*56 \n" );
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