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Brrunno [24]
3 years ago
13

Random groups of 25 graduates of a school of nursing were asked the starting salary for their first nursing job after graduation

. The sampling variability was low. If the average salaries of several of the groups or close is $65,000 which of these is least likely to be the average salary of another groups
Mathematics
1 answer:
laila [671]3 years ago
6 0

Answer:the answers is 75.000

Step-by-step explanation:

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The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 peopl
laiz [17]

Answer: The waiting time will be 32 minutes when 240 people in line.

Step-by-step explanation:

Let us assume that the waiting time is directly proportional to the number of people in the queue.

Equation of direct proportion between variables x and y :  \dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}

Put x_1=20,\ y_1=150,\ y_2=150  to find  x_2.

\dfrac{20}{150}=\dfrac{x_2}{240}\\\\\Rightarrow\ x_2=\dfrac{20}{150}\times240\\\\\Rightarrow\ x_2=32

Hence, the waiting time will be 32 minutes when 240 people in line.

3 0
3 years ago
Read 2 more answers
Daniel is buying trophies and mounting stands for the upcoming basketball awards ceremony. The trophies come in boxes of 12 and
AveGali [126]

So, first, you have to find the smallest number that is divisible by both 12 and 10. Which is 60. So, you need 5 boxes of trophies and 6 boxes of stands

Now to get how much it will cost you now multiply the respective costs by the amount of boxes so you get

5 x 10 = 50

6 x 6 = 36

Then you add both

50 + 36 = 86

He will spend a total of $86 on both trophies and stands.

4 0
3 years ago
How are the ratios 3:6 and 9:18 related?
Viktor [21]

Answer:

three times 3 is nine and six times three is eighteen, 3:6 is simplified.

8 0
3 years ago
Read 2 more answers
Divide polynomial by the monomial. Simplify answer completely.
forsale [732]

Answer:

Hi my lil bunny!

❀ _____.______❀_______._____ ❀

- ( 6x + 1 - \frac{2}{5x} ) or it could be - \frac{30x^2 + 5x -2}{5x}

Step-by-step explanation: Factor the numerator and denominator and cancel the common factors. OR Move the negative in front of the fraction.

Try both of them because they both could be right.

❀ _____.______❀_______._____ ❀

Hope this helped you.

Could you maybe give brainliest..?

7 0
3 years ago
What value should be added to the expression to create a perfect square? x^2 - 20x
boyakko [2]
To complete the square:
we take the coefficient ox "x" (which in this problem is -20)
we divide it by 2
square that number
then add it to both sides of the equation

-20 / 2 = -10
-10^2 = 100
then we add 100 to both sides of the equation:
x^2 -20x
x^2 -20x +100 = 100
******************************************************
To get the roots of the equation, we take the square root of both sides:
(x -10) * (x-10) = 10
(x-10) = square root (10)
x-10 = <span> <span> <span> 3.1622776602 </span> </span> </span>
x1 = <span> <span> <span> 13.1622776602 </span>
and don't forget that square root of 10 also equals  </span></span><span><span><span> -3.1622776602 </span> </span> </span>
x2 = 10 -<span> <span> <span> 3.1622776602
x2 = </span></span></span> <span> <span> <span> 6.8377223398 </span> </span> </span>


4 0
3 years ago
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