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3 years ago

1/7 rounded to the nearest thousand

Mathematics

1 answer:

Semmy [17]3 years ago

7 0

1/7 = 0.14285714
rounded to the nearest thousandth, it would be 0.143

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The wholesale price for a of shoes is $7.50. A certain department store marks up the wholesale price by 50%. Find the price of t

morpeh [17]

Answer:

$11.25

Step-by-step explanation:

1.5×7.5=11.25

4 0

3 years ago

A researcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed Internet access. Her es

Sunny_sXe [5.5K]

Answer: a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : $z_{\alpha/2}=1.645$

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219$

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271$

Required minimum sample size= 271

8 0

3 years ago

Help please! It's a quiz. will mark brainliest for correct answer!

yarga [219]

Answer:

you first start by making your equation: 45 +.25x = 70 +.15x. then subtract .15x from both sides. it should look like 45 +.10x = 70. subtract 45 from both sides then you get .10x = 25. divide 10 to both sides and you get 250. so the two companies will be the same at 250 texts.

Step-by-step explanation:

8 0

3 years ago

Find four consecutive integers with the sum of 54

Maksim231197 [3]

54/4 = 13.5

take the 2 whole numbers below 13.5 and the 2 whole numbers above 13.5

12 + 13 + 14 + 15 = 54

7 0

3 years ago

Please help me thank u

finlep [7]

It would be A=18 because of the equation a^2+b^2=c^2.

3 0

3 years ago

1/7 rounded to the nearest thousand​

1/7 rounded to the nearest thousand