Answer:
Step-by-step explanation:
x + x + 2x = 80
4x =80
X = 20
Nick = 20
Paul = 20
Krutika = 40
18x
Simple as that. 18 times however many times she cuts the grass
ratio of vertical change between 2 points
Answer:
Scruffy is
inches longer than Fluffy.
Step-by-step explanation:
Length of Scruffy =
inches
Length of Fluffy =
inches
We have to calculate how much Scruffy is longer than Fluffy.
Difference of their lengths = 
= (10 - 8) + 
= 2 + 
= 2 + 
=
inches
Therefore, Scruffy is
inches longer than Fluffy.
Solution :
This is the two tailed test.
The null hypothesis and the alternate hypothesis is as :
Null hypothesis is 
Alternate hypothesis is 

Therefore, the critical value of z is :

Now the test statics is :



The test statics is 0.878
We see that it is a right tailed test.


= 0.3800
Thus , P-value > α
So we fail to reject the null hypothesis.