From the above problem, we
can create the equation:
P = 245 + 20 t
where P is the total payment that
Johnny receives and t is the total time he worked
Given that P = 2245, so find for
t:
2245 = 245 + 20 t
t = 100 hours
Hi there!
I believe the answer is $300.
Why?
Because 20 (bird houses) x 15 (money for each one) = $300
I hope this helps.
:)
Answer:
Mailing preparation takes 38.29 min max time to prepare the mails.
Step-by-step explanation:
Given:
Mean:35 min
standard deviation:2 min
and 95% confidence interval.
To Find:
In normal distribution mailing preparation time taken less than.
i.eP(t<x)=?
Solution:
Here t -time and x -required time
mean time 35 min
5 % will not have true mean value . with 95 % confidence.
Question is asked as ,preparation takes less than time means what is max time that preparation will take to prepare mails.
No mail take more time than that time .
by Z-score or by confidence interval is
Z=(X-mean)/standard deviation.
Z=1.96 at 95 % confidence interval.
1.96=(X-35)/2
3.92=(x-35)
X=38.29 min
or
Confidence interval =35±Z*standard deviation
=35±1.96*2
=35±3.92
=38.29 or 31.71 min
But we require the max time i.e 38.29 min
And by observation we can also conclude the max time from options as 38.29 min.
Answer:
The depth of the water is increasing by <u>2</u> feet each minute
Step-by-step explanation:
y-axis represents the depth of the water (in feet) and x-axis represents time (in minutes)
To answer the question we need to find the slope of the line. Given that the line goes through points (2, 4) and (4, 8), its slope is:
slope = (y2 - y1)/(x2 - x1) = (8 - 4)/(4 - 2) = 2
