A political analyst found 43% of 300 randomly selected republican voters feel that the federal government has too much power. Fi
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x = liters of 20% solution
Mixing the 20% solution with the 60 L of 90% solution gives a new mixture with volume (x + 60) L. Each L of the 20% solution contributes 0.2 L of alcohol and thus a total of 0.2x L of alcohol, while the 60 L of 90% solution contributes 54 L of alcohol.
We want the concentration of the new mixture to be 80%, so we require
Solve for x:
So you will need 30 L of the 20% solution.
Answer:
c= -1.8
Step-by-step explanation:
A function is continuous at a point x if the limits at x from above and below coincide (are equal). Hence,
Limit from above:
Limit from below:
And so when these limits are equal we obtain