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Tamiku [17]
3 years ago
10

How long wil it take an emperor penguin to swim 45miles if it is swimming 9mph

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
6 0
I think your answer is it should take 5 hours. Good Luck!
Shtirlitz [24]3 years ago
4 0
It will take 5 hours
You might be interested in
If the length of FH is 18 units, what is the value of x?
andriy [413]

Answer:

3

Step-by-step explanation:

FH is 4x + 2x.

4x + 2x = 18

6x = 18

Divide both sides by 6.

6x/6 = 18/6

x = 3

I hope this helps.

Please thank, rate 5 stars, and give brainliest, thanks.

5 0
3 years ago
The length of a square is increased by 2 inches. The perimeter of the original square is ten inches more than the length of one
Lapatulllka [165]
Let x be the length of one side of the smaller square
Let y be the length of one side of the larger square
4x would be the perimeter of the smaller square, as it has 4 sides
Therefore 4x = y + 10, as the perimeter of the smaller square is 10 inches bigger than one side of the larger square.
We're going to solve this question using simultaneous equations. This means we need another equation to compare the first one to.
Since we know that one side of the larger square is 2 inches bigger than the first one, we can make the equation
y = x + 2
Know that we know the value of y in terms of x, we can introduce this value to the original equation to find:
4x = (x + 2) + 10
Therefore:
4x = x + 12
3x = 12
x = 4
Now that we know the size of the sides on the smaller square, we can figure out the size of the larger square by using our second equation (y = x + 2)
y = 4 + 2
y = 6
Therefore, the length of each side of the larger square is<u> B.6</u>
4 0
3 years ago
State the null and alternative hypotheses for the situation described below for a statistical test. Testing to see if average sa
katovenus [111]

Answer:

<em>H₀</em>: <em>μ</em>₁ - <em>μ</em>₂ = 0 vs. <em>Hₐ</em>: <em>μ</em>₁ - <em>μ</em>₂ > 0.

Step-by-step explanation:

A test is to be performed to determine whether the average sales are higher in stores where customers are approached by salespeople than in stores where they aren't.

A two-sample test can be used to determine whether there is a significant difference between the sales of the stores where the customers are approached by salespeople and the stores where the customers are not approached by salespeople.

We can either use the <em>z</em>-test or <em>t</em>-test. If the population standard deviation for the sales of the two stores are given then we will use the <em>z</em>-test. And if not then the <em>t</em>-test will be used.

1 : group of stores where customers are approached by salespeople

2 : group of stores where customers are not approached by salespeople

The hypothesis can be defined as follows:

<em>H₀</em>: There is no difference between the average sales of the two stores, i.e. <em>μ</em>₁ - <em>μ</em>₂ = 0.

<em>Hₐ</em>: The sales for the store 1 is higher than that for store 2, i.e. <em>μ</em>₁ - <em>μ</em>₂ > 0.

6 0
3 years ago
There are 10 roller coasters at 6 flags, and you only have time to ride 3 before the park closes. How many different
xeze [42]

Answer: 720

Step-by-step explanation:

Number of different ways he can create a path to 3 different roller coasters is given by;

N = nPr ( n permutation r) = n!/(n-r)!

Where n is the total number of roller coasters = 10

and r is the number of roller coasters he could ride = 3

Therefore,

N = 10P3 = 10!/(10-3)! = 10!/7!

N = 10×9×8 = 720

N = 720

6 0
3 years ago
In 25 minutes, 300 customers entered the attraction. At this rate, how many customers would enter the attraction in 1 hour?
arlik [135]

Answer:

720 i would think.

Step-by-step explanation:

3 0
2 years ago
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