605,50/70= 929 per liter or 9.29 if it was suppose to be 605.50 price.
First subtract the x variable on both sides so on the first equation youll have -6y=8x+60 then divide 6 on all variables which means youll have y=8/6x+10 and in the second equation you do the same thing and youll have y=-5/6x-11.5
Your answer is 200 please give me a rate and thanks ;)
Answer:



Step-by-step explanation:
Given
Let
A = Event of being a universal donor.
So:


Solving (a): Mean and Standard deviation.
The mean is:



The standard deviation is:




Solving (b): P(x = 3)
The event is a binomial event an dthe probability is calculated as:

So, we have:




Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.