Answer:
24
Step-by-step explanation:
She visits 3 temples one by one
She offers 1/2 of what she has in the baske
- So 1/2 to the first
- 1/2 of 1/2 to the second =1/4
- And 1/2 of 1/2 of 1/2 to the third 1/8
She is left with 3 flowers
If she gave 1/2 of what she had left to the 3rd, and the other half was 3
Then it means she gave the 3rd 3 flowers
So 3 is 1/8th of what she had at the beginning
Multiply 3*8 and you get 24
Hope this helps ^_^
Answer:
60 square inches
Step-by-step explanation:
Area = length x width
L = 12 inches
W = 5 inches
Area = 12 x 5
= 60 square inches
9514 1404 393
Answer:
72 +13n = 163
7 nights
Step-by-step explanation:
At 13 pages per night, Mario will read 13n pages in n nights. That plus the pages already read will total 163:
equation: 13n +72 = 163
__
To solve this, we can subtract 72, then divide by the coefficient of n.
13n = 91 . . . . . . subtract 72 from both sides
n = 7 . . . . . . . . divide both sides by n
Mario read 7 nights.
Answer:
y=x+3
Step-by-step explanation:
Answer:
Where and
So then we can find in the normal standard distribution or in excel a value of Z who accumulates 0.25 of the area below and 0.75 of the area above. We can use the following excel code for example:
="NORM.INV(0.25,0,1)"
And we got = z= -0.674.
So the value of height that separates the bottom 25% of data from the top 75% is -0.674 °C.
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the readings at freezing of a population, and for this case we know the distribution for X is given by:
Where and
So then we can find in the normal standard distribution or in excel a value of Z who accumulates 0.25 of the area below and 0.75 of the area above. We can use the following excel code for example:
="NORM.INV(0.25,0,1)"
And we got = z= -0.674.
So the value of height that separates the bottom 25% of data from the top 75% is -0.674 °C.