document.write( "Question 399813: Can you explain how to solve this word problem?:
\n" ); document.write( "How much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution?
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Algebra.Com's Answer #283074 by mananth(16946)\"\" \"About 
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How much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain a 20% acid solution?\r
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\n" ); document.write( "25% acid solution................. x L
\n" ); document.write( "15% acid solution..................5 L
\n" ); document.write( "20% acid solution..................(x+5) L
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\n" ); document.write( "25x+15*5=20(x+5)
\n" ); document.write( "25x+75=20x+100
\n" ); document.write( "25x-20x=100-75
\n" ); document.write( "5x=25
\n" ); document.write( "/5
\n" ); document.write( "x= 5 L.......... 25% solution
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