document.write( "Question 513036: how many liters of baking soda must be added to 240 liters of a 20% baking soda solution to get a 60% baking soda solution \n" ); document.write( "

Algebra.Com's Answer #342839 by Maths68(1474) $\"\"$ $\"About$

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Soluton A
\n" ); document.write( "Amount = x
\n" ); document.write( "Concentration = 100%=1
\n" ); document.write( "================================================================================
\n" ); document.write( "Solution B
\n" ); document.write( "Amount = 240 liters
\n" ); document.write( "Concentration = 20%=0.2
\n" ); document.write( "================================================================================
\n" ); document.write( "Final Solution
\n" ); document.write( "Amount=240+x
\n" ); document.write( "Concentration=60%=0.6
\n" ); document.write( "================================================================================
\n" ); document.write( "(Amount of A * Concentration of A)+(Amount of B * Concentration of B) = (Final Amount * Final Concentration)
\n" ); document.write( "(x*1)+(240*0.2)=(240+x)*0.6
\n" ); document.write( "x+48=144+0.6x
\n" ); document.write( "x-0.6x=144-48
\n" ); document.write( "0.4x/0.4=96/0.4
\n" ); document.write( "x=240
\n" ); document.write( "================================================================================
\n" ); document.write( "240 liters of baking soda must be added to 240 liters of a 20% baking soda solution to get a 60% baking soda solution \n" ); document.write( "

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