document.write( "Question 1072534: Justin needs 140 L of an 80% acid solution. he only has a 25% solution and a 95% solution though how many liters of each does he need to make the needed 140 L of 80% acid solution? \n" ); document.write( "

Algebra.Com's Answer #687408 by ikleyn(52793) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "Let x be the volume of the 25% acid solution to mix, and\r\n" );
document.write( "let y be the volume of the 95% acid solution to mix.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then your governing equations are\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    x +      y = 140,       (1)\r\n" );
document.write( "0.25x + 0.95*y = 0.8*140.   (2)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Simplify and solve for x and y.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "There is entire bunch of lessons covering various types of mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - More Mixture problems\r
\n" ); document.write( "\n" ); document.write( "    - Solving typical word problems on mixtures for solutions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for antifreeze solutions \r
\n" ); document.write( "\n" ); document.write( "    - Word problems on mixtures for alloys \r
\n" ); document.write( "\n" ); document.write( "    - Typical word problems on mixtures from the archive\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solution the mixture word problems.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Mixture problems\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );