The number of nails in a 5 lb box is normally distributed with a mean of 325 nails and a standard deviation of 15 nails
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
Given
Quadratic equation is
Solving by completing the square method
The solution set of the equation is
To Find :
How many gallons of a 80% antifreeze solution must be mixed with 100 gallons of 20% antifreeze to get a mixture that is 70% antifreeze.
Solution :
Let, x gallons of 80% antifreeze solution is required :
So,
Therefore, 500 gallons of 80% antifreeze solution is required.