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3 years ago

8

Suppose that 6.5 million students in a certain country were in 4th grade. This was 8.6% of all students in the country. Find the

number of students in the country that year. Round your answer to one decimal place.

1 answer:

UkoKoshka [18]3 years ago

8 0

Answer:

7560 million

Step-by-step explanation:

here is the answer for your question

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What is 7+78/3=?<br> A.43<br> B.25<br> C.25.5<br> D.75

Andrei [34K]

So correct answer is 33

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3 years ago

Find each probability if a die is rolled.<br> P(divisible by 4)

olga2289 [7]

When a die is rolled, there are six posible results:
1, 2, 3, 4, 5, and 6
Total number of posible results: n=6

Divisible by 4 is only the result 4
Number of favorable results: f=1

P(divisible by 4)=f/n
P(divisible by 4)=1/6
P(divisible by 4)=0.1667
P(divisible by 4)=0.1667*100%
P(divisible by 4)=16.67%

P(divisible by 4)=1/6=0.1667=16.67%

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3 years ago

Danielle has her finals coming up and she's worried she'll fail her class. Her past 3 test grades were a 72. an 85, and a 68. Sh

natka813 [3]

Answer:

55

Step-by-step explanation:

7 0

3 years ago

Determine the standard variation of the data below. (1, 2, 3, 4, 5)

Ne4ueva [31]

Calculate for the mean/ average of the given numbers:

μ = (1 + 2 + 3 + 4 + 5) / 5 = 3

Then, we calculate for the summation of the squares of differences of these numbers from the mean, S

S = (1 - 3)² + (2 - 3)² + (3 - 3)² + (4 - 3)² + (5 - 3)²
S = 10

Divide this summation by the number of items and take the square root of the result to get the standard deviation.

SD = sqrt (10 / 5) = sqrt 2
SD = 1.41

Thus, the standard deviation of the given is equal to 1.41.

8 0

3 years ago

Read 2 more answers

Pedro said, "On summer vacation, I spent 3 1/2 weeks with my uncle and two weeks more with my friend than with my uncle." How ma

ladessa [460]

Answer:

Pedro spent 9 weeks with his uncle and his friend.

Step-by-step explanation:

First, you need to find the amount of weeks Pedro spent with his friend. The statement indicates that he spent two weeks more with his friend than with his uncle which means that you have to add the number of weeks he spent with his uncle plus 2, which you can show in a number line:

$3\frac{1}{2}$ 2

___________________

1 2 3 4 5 6 7 8 9 10

$3\frac{1}{2}+2=5\frac{1}{2}$

Now, you can find the and answer by adding up the number of weeks he spent with his uncle plus the weeks he spent with his friend:

$3\frac{1}{2}$ $5\frac{1}{2}$

__________________________________

1 2 3 4 5 6 7 8 9 10

$3\frac{1}{2} + 5\frac{1}{2}=9$

According to this, the answer is that Pedro spent 9 weeks with his uncle and his friend.

6 0

3 years ago