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katrin [286]
2 years ago
10

Pls help it for math

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
7 0
I think it’s 8

Hope it helps
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Devaughn is 14 years younger than Sydney. The sum of their ages is 52.What is Sydney's age?
artcher [175]
Set up an equation and solve:
2x-14=52
2x=66
x=33
sydney is 33 and devaughn is 19
5 0
3 years ago
5/6 N=10 solve this problem. I could not put the six under the five where it belongs. please show the work
Andreyy89

5/6N = 10

Mutiply by 6/5

So N=12

3 0
3 years ago
According to an​ almanac, 60​% of adult smokers started smoking before turning 18 years old. ​(a) compute the mean and standard
larisa [96]
The given problem describes a binomial distribution with p = 60% = 0.6. Given that there are 400 trials, i.e. n = 400.

a.) The mean is given by:

\mu=np=400\times0.6=240

The standard deviation is given by:

\sigma=\sqrt{npq} \\  \\ =\sqrt{np(1-p)} \\  \\ =\sqrt{400(0.6)(0.4)} \\  \\ =\sqrt{96}=9.80


b.)  The mean means that in an experiment of 400 adult smokers, we expect on the average to get about 240 smokers who started smoking before turning 18 years.


c.) It would be unusual to observe <span>340 smokers who started smoking before turning 18 years old in a random sample of 400 adult​ smokers because 340 is far greater than the mean of the distribution.
340 is greater than 3 standard deviations from the mean of the distribution.</span>
5 0
3 years ago
estimate 0.037854921 to the nearest hundredth express your answer as a single digit times a power of 10
Vilka [71]

To solve this problem you must apply the proccedure shown below:

1. Let's round the value to the nearest hundredth. As you can see, the digit 8 is in the thousandths place and is greater than 5, therefore, you must round up to 0.038.

2. Now express the value as a single digit times a power of 10, as following:

38x10^{-3}

Therefore, the answer is: 38x10^{-3}

6 0
3 years ago
Read 2 more answers
As an estimation we are told 5 miles is 8 km. <br> Convert 24 km to miles.
Oksi-84 [34.3K]

Answer:

15

Step-by-step explanation:

24*5=120 / 8 = 15

15 is answer.

3 0
3 years ago
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