Answer:
she started with 50 marbles
Step-by-step explanation:
The total is 100 than you just subtract 20 and 30 becasue that is what is added later on. After you subtract 20 and 30 from 100 you will get 50. Therefore Sara had started out with 50 marbles.
Hope that helps :)
Do you happen to have this in english i dont understand it at all :/
Answer:
PERIMETER=Y+2Y+11+-3Y-9+Y^2+5Y-1+6Y^2
=7Y^2+4Y+1
Answer:
upper control limit 
Concept :
where 
where 
Given :
She took a sample of per day 
is 
bottles.
The standard deviation 
of all bottles is 
degree.
Average across all 
bottles 
are 
degree Fahrenheit.
To find :
The value of the upper control limit (UCL)
Explanation :
Here, firstly we find the value of 
.
and 
Now,
degrees.
