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ElenaW [278]
2 years ago
7

Janet collected 4 times as many bags of cans as her friend. If her friend collected 0.87 of a bag,

Mathematics
2 answers:
Jobisdone [24]2 years ago
8 0

Answer:

Janet collected 3.48 bags of cans

Step-by-step explanation:

The answer is 3.48 because 0.87 multiplied by 4 is 3.48

mixas84 [53]2 years ago
4 0

Answer:

.384

hope this helps!

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During a basketball game, James attempted 20 shots and made 7. He says he made 35% of the shots he took. Is James correct? Expla
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Step-by-step explanation:

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The difference of w and 8 is at least 21.
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3 years ago
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The lengths of 3-inch nails manufactured on a machine are normally distributed with a mean of 3.0 inches and a standard deviatio
otez555 [7]

Using the normal distribution, it is found that 2.64% of all the nails produced by this machine are unusable.

In a <em>normal distribution</em> with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

  • The mean is of 3 inches, hence \mu = 3.
  • The standard deviation is of 0.009 inches, hence \sigma = 0.009.

Nails that are <u>more than 0.02 inches</u> from the mean are unusable, hence:

Z = \frac{0.02}{\sigma}

Z = \frac{0.02}{0.009}

Z = 2.22

The proportion is P(|Z| > 2.22), which is <u>2 multiplied by the p-value of Z = -2.22</u>.

Z = -2.22 has a p-value of 0.0132.

2 x 0.0132 = 0.0264

0.0264 x 100% = 2.64%

2.64% of all the nails produced by this machine are unusable.

You can learn more about the normal distribution at brainly.com/question/24663213

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3 years ago
Julio had $100 in account A on Sunday how much money does have in the account on Friday
yuradex [85]

Answer:

there is no way to solve it

Step-by-step explanation:

i think you may have missed part of the question

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