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3 years ago

8

2 3/4 - 3/7 10 points

2 answers:

yuradex [85]3 years ago

6 0

Answer:

2 3/4

<u> - 3/7</u>

3 5/28

Step-by-step explanation:

First, Find the common denominator of 4 and 7 which is 28. 28 will be the denominator of your difference.Then, now time to multiply, now you multiply 7 by 21 because you multiplied 7 by 4 to get 28. You do the same for the others one but a bit different because this time you multiply 4 by 3= 12 now you have 21/28 and 12/28. Now you add 21 and 12 not 28 because you don't multiply denominators in this case. After that you get 33/28, this is an improper fraction so you divide. 28 goes into 33 once so you have a whole number 1 then you have 5 left over making it the numerator. Result 1 5/28, because you have the whole number 2 left from the equation you add it ending up with 3 5/8

Hope this helps :D !!

alexira [117]3 years ago

4 0

Answer:

It only gives five points.

Step-by-step explanation:

I just wanted to let you know.

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3 years ago

2 3/4 x 8 = blank/4 x 8/1

Alex

Answer: 11

Step-by-step explanation:

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Let p be the missing number

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3 years ago

Your company is considering submitting a bid on a major project. You determine that the expected completion time is 130 weeks an

Olenka [21]

Answer:

Option C) 146.5

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 130 weeks

Standard Deviation, σ = 10 weeks

We are given that the distribution of completion time is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

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We have to find the value of x such that the probability is 0.95

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Annette [7]

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