The last one I can't get the signs up
X= smaller #
Y= larger #
X + y = 55
55-15=40
X=40 and y=15
Answer How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution. ... x=15 liters 15*(.20 pure acid)=3 liters 30*(.50 pure acid)=15 liters That is 18 liters pure acid That is 45 liters solution *0.45 pure acid=18 liters.
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Answer:
0.067 mps should be your answer
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