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aliina [53]
3 years ago
14

The first number is 5 less than 3 times the second number. Twice the first number plus the second number is 137. Find the two nu

mbers
Mathematics
1 answer:
Irina-Kira [14]3 years ago
8 0
5-3+10+137 10 and 137 are your numbers hope this helped 
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katrin2010 [14]
One lap. Usually, it would take 4 laps to walk a mile, but since its 1/4 it equals One lap.
7 0
3 years ago
A researcher collated data on Americans’ leisure time activities. She found the mean number of hours spent watching television e
ikadub [295]

The value of the z statistic for the considered data is given by: Option A: -3.87 approximately.

<h3>How to find the z score (z statistic) for the sample mean?</h3>

If we're given that:

  • Sample mean = \overline{x}
  • Sample size = n
  • Population mean = \mu
  • Sample standard deviation = s

Then, we get:

z = \dfrac{\overline{x} - \mu}{s}

If the sample standard deviation is not  given, then we can estimate it(in some cases) by:

s = \dfrac{\sigma}{\sqrt{n}}

where \sigmapopulation standard deviation

For this case, we're specified that:

  • Sample mean = \overline{x} = 2.3
  • Sample size = n = 15
  • Population mean = \mu  = 2.7
  • Population standard deviation = \sigma = 0.4

Thus, the value of the z-statistic is evaluated as:

z = \dfrac{\overline{x} - \mu}{\sigma/\sqrt{n}} = \dfrac{2.3- 2.7}{0.4/\sqrt{15}} \approx -3.87

Thus, the value of the z statistic for the considered data is given by: Option A: -3.87 approximately.

Learn more about z statistic here:

brainly.com/question/27003351

6 0
2 years ago
What is the exact circumference of a circle with a radius of 125 m? Use 3.14 to approximate pi
djyliett [7]

Answer:

B. 785 M

Step-by-step explanation:

Circumference = 2*pi*r

C = 2 * pi * 125

C = 250pi   This is the exact answer

Now approximating with pi as 3.14

C = 250 (3.14)

C = 785

4 0
3 years ago
Read 2 more answers
PLEASE HELP!! I beg of yall
Delicious77 [7]

Answer:oop

Step-by-step explanation:

5 0
2 years ago
Does anyone get this?
stepladder [879]

Answer: B

Step-by-step explanation:

 In the systems of equation it already gives you the solution for x  which is -2 so all you have to do is substitute -2 into the first equation and solve for y.

y= 2/3x + 3    

x= -2

Substitute x for -2

y = \frac{2}{3}* \frac{-2}1}  + 3  

y= \frac{-4}{3} + \frac{3}{1}    

y = \frac{5}{3}  

so now you have the solution like this (-2,\frac{5}{3})

8 0
3 years ago
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