Answer:
The solution to your equation is: 23x+2
Answer:
4.875 = s
Step-by-step explanation:
3.5=12s-55
Add 55 to each side
3.5+55=12s-55+55
58.5 = 12s
Divide each side by 12
58.5/12 = 12s/12
4.875 = s
Answer:
220 Yards per minute
Step-by-step explanation:
15miles/2hours
**To show mph**
7.5miles/1hour ; Now you want to convert the miles into yards and the hours into minutes.
7.5*1,760/60minutes
13200/60 minutes ; now divide to show yards per minute.
220ypm
Answer:
171
Step-by-step explanation:
Q~r
find k (k is the constant)
Q=kr
76=k×20
76=20k divide 20 on both sides giving you
k=3.8
then Q=k×r
Q=3.8×45
Q=171
Answer:
[0.9 months, 32.69 months]
Step-by-step explanation:
The mean is
The standard deviation is
Now, we have to find two values a and b such that the area under the Normal curve with mean 16.8 and standard deviation 8.1092 between a and b equals <em>95% = 0.95
</em>
Using a spreadsheet we find these values are
a = 0.906
b = 32.694
<h3>(See picture)
</h3>
and our 95% confidence interval for the mean number of months elapsed since the last visit to a dentist for the population of students participating in the program rounded to two decimal places is
[0.9 months, 32.69 months]