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tekilochka [14]
3 years ago
10

Dahlia mandujano uses 250 meters of fabric to create 16 purses.At this rate how many meters far fabric are needed to make one pu

rse?

Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer:

The answer is 16.625

Step-by-step explanation:

We need to divide 250 by 16 to know how much fabric is used to make 1 purse

(I do not know if this is correct, It's almost 2 am so I am very tired)

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Name a 2 digit odd number that is prime. Name a 2 digit odd number that is composite .
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11 for the first one and 12 for the second one
8 0
3 years ago
A fast food restaurant executive wishes to know how many fast food meals adults eat each week. They want to construct a 98% conf
adelina 88 [10]

Answer:

n=(\frac{2.326(1.1)}{0.07})^2 =1336.006 \approx 1337

So the answer for this case would be n=1337 rounded up to the nearest integer

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

\sigma=1.1 represent the population standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =0.07 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And in excel we can use this formula to find it:"=-NORM.INV(0.01;0;1)", and we got z_{\alpha/2}=2.326, replacing into formula (b) we got:

n=(\frac{2.326(1.1)}{0.07})^2 =1336.006 \approx 1337

So the answer for this case would be n=1337 rounded up to the nearest integer

3 0
3 years ago
A bicyclist travels at a rate of 13 miles an hour. If the bicyclist continues at this rate, how many miles can the bicyclist tra
LenKa [72]
7.5 miles because 13/2
3 0
3 years ago
Read 2 more answers
Will mark brainlest helpppp pleaseeeee​
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Answer:

come to mya massanger dk khanal fb user

Step-by-step explanation:

i will teach you by sending picture

8 0
2 years ago
HELP ASAP PLEASE !!!!!!!!!!!!!!
Damm [24]

Answer:

Step-by-step explanation:

Think of drawing a right triangle, with the hypotenuse connected to points A and B.  The hypotenuse, or the distance between A and B is 2√10.  2√10 is the same thing as √40.  Thus, because of Pythagorean theorem, a^2 + b^2 = 40. One combination would be a=2 and b = 6 and another would be a = 6 and b = 2.  Thus, the two places point B could be are (3,7) and (7,3).

Hope it helps <3

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3 years ago
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