Answer:
C = 40 + 0.17M
Step-by-step explanation:
Total monthly charge = Fixed base fee + charge per minute*total number of minutes
C = 40 + 0.17*M
C = 40 + 0.17M
Let's attack this problem using the z-score concept. The sample std. dev. here is (0.25 oz)/sqrt(40), or 0.040. Thus, the z score representing 3.9 oz. is
3.9 - 4.0
z = -------------- = -2.5
0.040
In one way or another we must find the area under the std. normal curve that lies to the left of z = -2.5. Use a table of z-scores or a calculator with built-in statistics functions. According to my TI-83 Plus calculator, that area is
0.006. One way of interpreting this that with so small a standard deviation, most volumes of coffee put into the jars are very close to the mean, 4 oz.
Answer:
Step-by-step explanation:
The reciprocal of a number n is 
Given 8 
, change to an improper fraction
= 
= 
, thus
reciprocal = 
=
-1/4 is between -2/6 and -1/6
The number of Elrodeo students is 837.
Let the number of students at Hawthorne be x.
"<span>El rodeo has 78 more students than hawthorne</span>"
this means that
837 = 78 + x
x = 837 -78 = 759
Answer: Hawthorne has 759 students
