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3 years ago

Use the ratio table to solve the percent problem.

2 answers:

8 0

Not quite sure what the ratio table is
But you can divide both sides by 3 to get 2 out of 10 and then multiply it by 10 to get 20/100 or 20%

Maru [420]3 years ago

8 0

Its 20 percent, you divide 6 out of thirty and times by 100 (6/30=0.2*100=20%)

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Which table belongs to the equation y = 4x - 4?*

fenix001 [56]

Answer:

Could you maybe provide the answer choices?

Step-by-step explanation:

7 0

2 years ago

The article "Occurrence and Distribution of Ammonium in Iowa Groundwater" (K. Schilling, Water Environment Research, 2002:177–18

Papessa [141]

Answer: 95% confidence interval for the difference between the proportions would be (1.31, 1.39).

Step-by-step explanation:

Since we have given that

Number of alluvial wells = 349

Number of quaternary wells = 143

Number of alluvial wells that had concentrations above 0.1 = 182

Number of quaternary wells that had concentrations above 0.1 = 112

Average of alluvial wells = 0.27

Standard deviation = 0.4

Average of quaternary wells = 1.62

Standard deviation =1.70

So, 95% confidence interval gives

alpha = 5% level of significance.

$\dfrac{\alpha}{2}=2.5\%\\\\z_{\frac{\alpha}{2}}=1.96$

So, 95% confidence interval becomes,

$(1.62-0.27)\pm 1.96\sqrt{\dfrac{0.4^2}{349}+\dfrac{1.7^2}{143}}\\\\=1.35\pm 1.96\times 0.020\\\\=(1.35-0.040,1.35+0.040)\\\\=(1.31,1.39)$

Hence, 95% confidence interval for the difference between the proportions would be (1.31, 1.39).

6 0

3 years ago

The GCF of 18 and 30 is ____.

hammer [34]

The GCF of 18 and 30 is 6

4 0

3 years ago

Read 2 more answers

In which quadrant of the coordinate graph does point F

Elis [28]

Answer:

Quadrant IV .

Step-by-step explanation:

I hope it will be helpful for you.

4 0

1 year ago

Which pair of numbers is relatively prime?

Lesechka [4]

The answer would be D) 10 and 33.

5 0

3 years ago