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2 years ago

Work out the difference between 11/12 and 3/12.Give your answer in simplest form.

2 answers:

5 0

11/12 - 3/11= 11-3=8 so 8 becomes your numerator 8/12 then simplify 8 and 12 by 4= 2/3 that's because 4 x 2 = 8 and 4 x 3 = 3. Your answer is 2/3

stealth61 [152]2 years ago

4 0

Umm 8/12 or 2/3 .......................................................................

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HELP!! Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Rashid [163]

Answer:

85%

Step-by-step explanation:

You are given the function $S(n)=20\cdot b^n.$

If n is the number of hours, then initially n=0 and

$S(0)=20\cdot b^0=20\cdot 1=20.$

If S(n) is the function of exponential growth, then it can be represented as

$S(n)=I\cdot (1+r)^n,$

where I is the initial amount, r -is the percent growth rate and n is the number of hours.

If b = 1.85, we can represent it as b = 1 + 0.85. Thus, the hourly percent growth rate of the bacteria would be 0.85=85%.

8 0

2 years ago

Read 2 more answers

A right triangle has side lengths 4 units, 5 units, and x units. It is unknown if the missing length is the longest or shortest

mel-nik [20]

Possible values = 3.0 and 6.0

6 - 3 = 3

The difference is 3

4 0

2 years ago

Read 2 more answers

What value does the 6 represent in the number 240.65

Kobotan [32]

Answer:

000.60

six hundredths

4 0

1 year ago

Researchers from Dartmouth Medical School conducted a study in 2003 to look at the connection between watching actors smoking in

docker41 [41]

Answer:

The 95% confidence interval for the proportion of adolescents who tried smoking for the first time because of exposure to smoking in the movies is (0.37, 0.40).

Step-by-step explanation:

A confidence interval is an interval estimate of the population parameter. The confidence interval has a certain probability of consisting the true value of the parameter.

The (1 - α) % confidence interval for the population proportion (p) is given by:

$CI=\hat p\pm z_{\alpha/2}\times \sqrt{\frac{\hat p(1-\hat p)}{n}}$

The information provided is:

$n = 6522\\\hat p=0.38\\z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a z-table for the critical value.

Construct the 95% confidence interval for the proportion of adolescents who tried smoking for the first time because of exposure to smoking in the movies as follows:

$CI=\hat p\pm z_{\alpha/2}\times \sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.38\pm 1.96\times \sqrt{\frac{0.38(1-0.38)}{6522}}\\=0.38\pm 0.0118\\=(0.3682, 0.3918)\\\approx (0.37, 0.40)$

Thus, the 95% confidence interval for the proportion of adolescents who tried smoking for the first time because of exposure to smoking in the movies is (0.37, 0.40).

8 0

2 years ago

Sergio and Lizeth have a very tight vacation budget. They plan to rent a car from a company that charges $75 a week plus $0.25 a

nordsb [41]

Answer: 500 miles

Step-by-step explanation:

Given : Sergio and Lizeth have planned to rent a car from a company that charges $75 a week plus $0.25 a mile.

i.e. Fixed charge= $75

Rate per mile = $0.25

Let x denotes the number of miles.

Then, Total charges = Fixed charge+ Rate per mile x No. of miles traveled

= $75+ $0.25x

To keep budget within $200, we have following equation.

$75+0.25x=200\\\\\Rightarrow\ 0.25=200-75\\\\\Rightarrow\ 0.25=125\\\\\Rightarrow\ x=\dfrac{125}{0.25}=\dfrac{12500}{25}=500$

Hence, they can travel 500 miles and still keep within their $200 budget.

4 0

2 years ago