Complete Question
The complete question is shown on the first uploaded image
Answer:
The calcium level that is the borderline between low calcium levels and those not considered low is 
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation 
The proportion of the population with low calcium level is 
5% = 0.05
Let X be a X random calcium level
Now the P(X < c) = 0.05
Here P denotes probability
c is population with calcium level at the borderline
Since the calcium level is normally distributed the z-value is evaluated as
The critical value for 0.05 from the standard normal distribution table is
=> 
substituting values
=> 
=>
2.50 is the answer because if she has 2 then she can get 1
Answer:
x = 4
Step-by-step explanation:
(5x+131)° and (5x+19)° are supplementary. Therefore, (5x+19)° + (5x+131)° equals to 180°.
Knowing that, we can do the following:
- (5x+19) + (5x+131) = 180
- 5x + 19 + 5x + 131 = 180
- 10x + 140 = 180
- 10x = 40
- <em>x = 4</em>
Answer:
The shop with the best value is Tisco with .46 per can.
Step-by-step explanation:
So you need to divide 1.84 by 4 which you get .46. Next you do 2.40 divided by 5 and you get .48. Finally you can tell that .48 is greater than .46.
Hope this helps!
Answer:
25 students
Step-by-step explanation:
we know that
44℅ of Mrs. Rutherford's class like chocolate ice cream
11 students like chocolate ice cream
so
11 students represent a 44℅ of Mrs. Rutherford's class
using proportion
Find out how many students represent a percentage of 100% (total students in the class)
