document.write( "Question 1031486: a solution of 72% fertilizer is to be mixed with a 26% fertilizer to form 230 liters of a 53% solution. How many liters of the 72% solution must be used \n" ); document.write( "
Algebra.Com's Answer #646192 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
a solution of 72% fertilizer is to be mixed with a 26% fertilizer to form 230 liters of a 53% solution. How many liters of the 72% solution must be used
\n" ); document.write( "------
\n" ); document.write( "Quantity:: s + t = 230 liters
\n" ); document.write( "Fertilizer: 0.72s + 0.26t = 0.53*230
\n" ); document.write( "--------------------------------------------
\n" ); document.write( "Modify for elimination::
\n" ); document.write( "26s + 26t = 26*230
\n" ); document.write( "72s + 26t = 53*230
\n" ); document.write( "--------------------------------
\n" ); document.write( "Subtract and solve for \"s\"::
\n" ); document.write( "46s = 27*230
\n" ); document.write( "s = 135 liters (amt. of 72% solution needed)
\n" ); document.write( "-------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "-------------
\n" ); document.write( "
\n" );