Answer:
Unitary cost (per pound)= $0.682
Step-by-step explanation:
Giving the following information:
Total cost= $3.75
Total pounds= 5.5 pounds
<u>To calculate the unitary cost of each pound, we need to use the following formula:</u>
Unitary cost= total cost / total pounds
Unitary cost per pound= 3.75 / 5.5
Unitary cost per pound= $0.682
Answer:
198 and 612
Step-by-step explanation:
We are given that the scores are normally distributed.
The mean of the data is 405.
The standard deviation of this data is 69.
Empirical rule states that for a normally distributed data that
- about 68% data lies between that is one standard deviation from mean.
- about 95% data lies between that is one standard deviation from mean.
- about 99.7% data lies between that is one standard deviation from mean.
Thus, 99.7% of data will lie between that is it will lie in the range (198,612)
Answer:
D.
Step-by-step explanation:
That is the only answer provided.
222 = -u + 93
Subtract 93 from both sides.
129 = -u
Divide both sides by -1.
-129 = u