What is the value of each expression?
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Please help me with the last question just write the equation in vertex form
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Answer: 16.5 gallons of water should be mixed to make a 20% solution of
Step-by-step explanation: We are given the concentration of the solution in percentage, it can be taken as the molarity of the solution.
Now, to calculate the volume of water required, we use the formula:
where,
are the initial molarity and volume of the solution.
are the final molarity and volume of the solution.
Given:
Putting values in above equation, we get: