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Doss [256]
3 years ago
15

A person who weights 100 pounds on earth weights 16.6 lb. on the moon.

Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0
A. Weight on the moon
B. 16.6/100=0.166 
C. 30.71
D. 50=0.166(e), 50/0.166= 301.20 lbs
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I been asking for help since yesterday
mihalych1998 [28]
This one is extremely simple, and we can use the color coded pie chart to find the cost of each of the 5 things.

For the first, decorations, Mary spent $?? as shown by the blue triangle on the pie chart. Let’s get the other ones first to total the money left over.

For the second, she spent $65 on food, as shown by the green triangle on the pie chart.

For the third, she spent $80 on party hall rental, as shown by the blue triangle on the pie chart.

For the fourth, she spent $30 on prizes, as shown by the dark blue triangle.

And for the fifth one, she spent $45 on invitations. A bit too expensive if you ask me.

Then we add all the costs together, and get 220. After adding the extra costs such as candy, costumes, and music, we get a total of $345. We would subtract this from $375 to get a total of $30 left over, which was spent on decorations. The ??? value of the light blue triangle is $30.

Hope this helps!
6 0
1 year ago
In a sample of 8 high school students, they spent an average of 28.8 hours each week doing sports with a sample standard deviati
Alja [10]

Answer:

26.12\:

Step-by-step explanation:

Since the population standard deviation \sigma is unknown, and the sample standard deviation s, must replace it, the t distribution  must be used for the confidence interval.

The sample size is n=8.

The degree of freedom is df=n-1, \implies df=8-1=7.

With 95% confidence level, the \alpha-level(significance level) is 5%.

Hence with 7 degrees of freedom, t_{\frac{\alpha}{2} }=2.365. (Read from the t-distribution table see attachment)

The 95% confidence interval can be found by using the formula:

\bar X-t_{\frac{\alpha}{2}}(\frac{s}{\sqrt{n} } )\:.

The sample mean is \bar X=28.8 hours.

The sample sample standard deviation is s=3.2 hours.

We now substitute all these values into the formula to obtain:

28.8-2.365(\frac{3.2}{\sqrt{8} } )\:.

26.12\:

We are 95% confident that the population mean is between 26.12 and 31.48  hours.

4 0
2 years ago
Omar drove 249 kilometers in 3 hours he drove at a constant speed how many kilometers did he drive in 1 hour?
Drupady [299]

249 km in 3 hours are 83 km in 1 hours


249 : 3 = 83 Km

3 0
2 years ago
Does anyone know this? please help
natali 33 [55]

Answer:

3rd answer

Step-by-step explanation:

it would be the third answer

6 0
2 years ago
The bakery sells 7 different types of bagels. Melissa orders one type of bagel. Then Julio orders a different type of bagel. How
kaheart [24]
I think you square the number as many times as there are people so that is,. 7*7=49
3 0
2 years ago
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