Answer:
666
Step-by-step explanation:
From this question,
a = 1-99%
a = 1-0.99
a = 0.01
5% = z(0.05) = 2.58 when we check the standard normal table
Therefore we calculate n as:
n = (z/E)²*p*1-p
Z = 2.58
E = 0.05
P = 0.5
1-p = 0.5
(2.58/0.05)²x0.5x0.5
= 51.6²x0.5x0.5
= 665.64
Therefore n is approximately 666.
Answer:
2929 1/3 in^3
Step-by-step explanation:
The equation for the volume of a sphere is .
Insert 13 for r. Then, simplify.
Answer:
Answer: one fourth
Fourth is a word that used to describe a number value of 1/4. To answer this question, you need to change the number you got (3/12) into x/4 form. To convert 12 into 4, then you need to divide the numerator and denominator with 3. The equation would be (3/3)/(12/3)= 1/4.
To determine how much fourth the number has, you need to divide the result with 1/4. The calculation would be: (1/4)/ (1/4)= one fourth
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Answer:
It is equal to 0.3
Step-by-step explanation:
0.30 is 30/100, or 30 hundreths. If you simplify 30/100, you get 3/10, which is the same as 0.3, or 3 tenths
For this case we propose a system of equations:
x: Variable representing the amount of oranges
y: Variable that represents the amount of grapefruit
We have to meet a citrus gift package:
From the second equation we have to:
We replace in the first:
Thus, the package has 3 grapefruits.
On the other hand:
Thus, the package has 9 oranges.
Answer:
9 oranges