document.write( "Question 606225: how much pure acid should be mixed with 5 gallons of a 40% acid solution in order to get a 50% acid solution? \n" ); document.write( "
Algebra.Com's Answer #381959 by mathie123(224)![]() ![]() ![]() You can put this solution on YOUR website! Pure acid-- this means that we have 100% acid \r \n" ); document.write( "\n" ); document.write( "Using that fact: \n" ); document.write( "we have the following equation: \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "where x is the amount of pure acid that is added (also note that we will end up with x+5 gallons in the end)\r \n" ); document.write( "\n" ); document.write( "From here it is a matter of algebra and solving for x. \r \n" ); document.write( "\n" ); document.write( "try it yourself from this step, and let me know if you have any difficulties:) \n" ); document.write( " |