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3 years ago

What’s the value of x ?

Mathematics

1 answer:

tresset_1 [31]3 years ago

6 0

The answer is 29
Here’s my work:

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NEED THE ANSWERS FOR THIS ASAP, SOMEONE PLEASE HELP ME !!

photoshop1234 [79]

Answer:

1. 1/1 , 1, 100%

2. 1/2, 0.5, 50%

3. 1/3, 0.3, 30%

4. 2/3, 0.6, 60%

5. 1/4, 0.25, 25%

6. 3/4, 0.75, 75%

7. 1/5, 0.2, 20%

8. 2/5, 0.4, 40%

9. 3/5, 0.6, 60%

10. 4/5, 0.8, 80%

11. 1/6, 0.16, 16%

12. 5/6, 0.83, 83%

13. 1/8, 0.125, 12.5%

14. 3/8, 0.375, 37.5%

15. 5/8, 0.625, 62.5%

16. 7/8, 0.875, 87.5%

3 0

3 years ago

I need help very much please

musickatia [10]

Answer:

1/4

Step-by-step explanation:

5/20 = 1/4

hope this helps

4 0

3 years ago

Read 2 more answers

Val walks 2 3/5 miles each day . Bill returns 10 miles once every 4 days . In 4 days, who covers the greatest distance

julia-pushkina [17]

Val by 4/10 walk longer

7 0

3 years ago

Help me please,Thanks

maxonik [38]

<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>

6 0

3 years ago

A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

Slav-nsk [51]

Answer:

Systolic on right

$\hat{CV} =\frac{18.68}{127.5}=0.147$

Systolic on left

$\hat{CV} =\frac{12.65}{74.2}=0.170$

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

Step-by-step explanation:

Assuming the following data:

Systolic (#'s on right) Diastolic (#'s on left)

117; 80

126; 77

158; 76

96; 51

157; 90

122; 89

116; 60

134; 64

127; 72

122; 83

The coefficient of variation is defined as " a statistical measure of the dispersion of data points in a data series around the mean" and is defined as:

$CV= \frac{\sigma}{\mu}$

And the best estimator is $\hat {CV} =\frac{s}{\bar x}$

Systolic on right

We can calculate the mean and deviation with the following formulas:

[te]\bar x = \frac{\sum_{i=1}^n X_i}{n}[/tex]

$s= \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

For this case we have the following values:

$\bar x = 127.5, s= 18.68$

So then the coeffcient of variation is given by:

$\hat{CV} =\frac{18.68}{127.5}=0.147$

Systolic on left

For this case we have the following values:

$\bar x = 74.2 s= 12.65$

So then the coeffcient of variation is given by:

$\hat{CV} =\frac{12.65}{74.2}=0.170$

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

4 0

3 years ago