Answer:
Lori spends <u>9 minutes</u> on sketching 
th of a sketch.
Step-by-step explanation:
Given equation:
where 
number of minutes Lori spends on sketching
and 
number of sketches Lori makes.
We need to calculate the time spent by Lori in sketching of a sketch.
So we know the value of 
as 
represents number of sketches and in this situation Lori has sketched only a fraction of a painting.
So we plugin in the equation and calculate 
which is time spent by Lori sketching th of a sketch.
∴ 
minutes (Answer)
∴ Lori spends 9 minutes on sketching th of a sketch.
I have no idea but you can do this I know you can
Answer:
yeah....same!
Step-by-step explanation:
Answer:
The probability of finding a sample mean less than 18 hours is 0.0082
Step-by-step explanation:
To find the probability of finding a sample mean less than 18 hours, we need to calculate the z-score of this sample mean 18. And the probability of finding a sample mean less than 18 hours is P(z<z(18)).
Z-score can be calculated as follows:
z(18)=
where
- X is the sample mean (18 hours)
- M is the average hours dentists spend per week on fillings (20 hours)
- s is the standard deviation (10 hours)
- N is the sample size (144)
Putting the numbers, we get:
z(18)=
Using z- table we can find that P(z<z(18)) = 0.0082
Answer:
620 minutes
Step-by-step explanation
In one day,Mata exercise 20minutes more than Greg
31 days so we have 20 *31=620
