hi how you doing
BTW why do we have to click answer question to get to chat box
um hello?
how do you answer the thing
378 cm is the volume hope this helped
Answer: Simplifying ratios is just like simplifying fractions. Think of ratios as fractions. You divide a number that both numerator and denominator can be divided by.
<u>Example</u>
5/10 = 1/2
How did we get 1/2? Simple! You divide the numerator and denominator by 5.
5/10÷5/5=1/2
You do the same for ratios but the only difference is instead of putting a fraction bar (/) you put a colon (:)
Let's try another example but with a ratio!
<u>Example</u>
5:10 = 1:2
How did we get 1:2? Simple! Again we divided by 5 just like we did with the fraction example! So really ratios are just like fractions!
5:10÷5:5=1:2
<u>Remember</u>
The fraction bar is /
The ratio bar is :
Ratios are just like fractions but the symbol can sometimes trick people.
Answer with explanation:
Given : The age that children learn to walk is normally distributed with
and
.
Let x be the age that children learn to walk .
B) Using formula 
n= 19
For x= 11.5

For x= 12.5

Then, by using the z-value table , for the 19 people, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old will be :-

Hence, for the 19 people, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old = 0.9707
C. Using formula 
For x= 11.5

For x= 12.5

Then, by using the z-value table , the probability that the average age that they learned to walk is between 11.5 and 12.5 months old will be :-

Hence, the probability that the average age that they learned to walk is between 11.5 and 12.5 months old = 0.3829
The correct answer is B 2.5 take your Y and divide by 2.5 and it gives you the X