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Rus_ich [418]
3 years ago
14

If your sample mean is 25, your population average is 5, and your standard error of the mean is 10, what is your observed z valu

e?
Mathematics
1 answer:
Ksivusya [100]3 years ago
3 0
10 divided by 5 times 10

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Question 11 of 20 : Select the best answer for the question. 11. Find the value of x in the equation 2(x – 3) + 5x = 5(2x + 6).
ivolga24 [154]
<span>To answer this question, you need to know the rules to move a number to the left or right side of the equal sign. To solve this, you need to move all the x into one side, and then move the number into another side. The calculation would look like this:


2(x – 3) + 5x = 5(2x + 6)
2x -6 +5x = 10x +30
2x+ 5x - 10x = 30 +6
-3x= 36
x= 36/-3= -12</span>
7 0
3 years ago
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(a) At Garcia's Bike Rentals, it costs $36 to rent a bike for 9 hours.
OleMash [197]

Answer:

15 mins per dollar

Step-by-step explanation:

how many minutes are their in 9 hours?

540 minutes

so, we divise 540 to 36

this results to 15.

this means, you get 15mins per dollar

3 0
3 years ago
If B is the midpoint of AC, and AC=8x-20, find BC.​
Natali5045456 [20]
2(3x-1)=8x-20
SIMPLY

6x-2=8x-20
SUBTRACT 6x ON BOTH SIDES

-2=2x-20
ADD 20 TO BOTH SIDES

18=2x
DIVIDE 2 ON BOTH SIDES

X=9
SUBSTITUTE

3(9)-1

27-1

26

BC=26
3 0
3 years ago
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PLEASE HELP!!! Division
krok68 [10]
The answer is 36/49.

You take the second fraction and flip it (it will be 12/14) and you multiply straight across. You get 72/98. You simplify it by finding it's greatest common factor (in this case it is 2) so you divide it the numerator and the denominator by 2. You get 36/49.
6 0
3 years ago
a scaled drawing of a rectangular park is 5 inches wide and 7 inches long. the actual park is 210 yards long. what is the width
VMariaS [17]

Answer:

I think the width would be 150 yd

Step-by-step explanation:

just broke down the 210 yd we had already to inches found out how much it was scaled up and did the same on the other side

6 0
2 years ago
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