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Tcecarenko [31]
4 years ago
13

The number of wiring packages that can be assembled by a company's employees has a normal distribution, with a mean equal to 19.

5 per hour and a standard deviation of 1.5 per hour. (a) What are the mean and standard deviation of the number x of packages produced per worker in an 8-hour day

Mathematics
1 answer:
mote1985 [20]4 years ago
7 0

Step-by-step explanation:

Below is an attachment containing the solution

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Find the value of x in each of the following<br>a) 5x/2+ 1 = 11<br>b) 2x/7 – 3 = 2​
laila [671]

Answer:

A) x=4

B) x=35/2

Step-by-step explanation:

calculate the product

A) 5x/2+1=11

multiply both sides of the equation by 2

5x+2=22

move the constant to the right hand side and change its sign

5x+22-2

now subtract the numbers

5x=20

now didvide both sides

5x=20

x=4

B)

calculate the product

2x/7-3=2

multiply both sides of the equation by 7

2x-21=14

move the constant to the right hand side and change its sign

2x=14+21

add the numbers

2x=35

now divide both sides of the equation by 2

x=35/2

8 0
3 years ago
Find the HCF of 64 and 80.
Varvara68 [4.7K]

Answer:

64=2✖️2✖️2✖️2✖️2✖️2

80=2✖️2✖️2✖️2✖️2✖️5

Common factors=2✖️2✖️2✖️2

As HCF= Product of common factors

HCF =2✖️2✖️2✖️2

HCF=16

Step-by-step explanation:

I hope this will help you:)

7 0
4 years ago
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Martin lifted weights in the gym, Monday thru Friday, for 20 weeks. each day he did 25 repetitions. how many repetitions did he
Ivan

Answer:

3500

Step-by-step explanation:

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I need help asap plz<br><br> Its 9th grade problem
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Y=1/2x-2 on the graph -2 would be the y intercept and x/y is slope so to find y as one you go in the middle of -2 and four
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Marcus has X songs downloaded to his phone he downloads 20 more songs to his phone enter an expression in the Box to represent t
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Since x is the number of songs he has on his phone and if he adds 20 more, his expression will be: x+20
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