Question 164275
Let's call the liters of paint added G.
You start out with 4 liters of paint that is 60 %green and 40 % white.
4(60/100)=2.4 liters green
4(40/100)=1.6 liters white
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I want the percentage of green to be 80% when I add G liters, then,
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Liters of Green/Liters of Paint=Percent Green
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{{{(2.4+G)/(4+G)=0.80}}}
{{{2.4+G=0.8*(4+G)}}}
{{{2.4+G=3.2+0.80G}}}
{{{0.2G=0.8}}}
{{{G=4}}}