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alina1380 [7]
3 years ago
14

Fletcher got 92 votes in the class election. 115 people voted. what percent of all the votes did he get?

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
3 0
92 divided by 115 equals 80 percent
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The blood platelet counts of a group of women have a​ bell-shaped distribution with a mean of 256.3 and a standard deviation of
AnnyKZ [126]

Answer:

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) In the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

Step-by-step explanation:

For a Normal distribution N (μ ; σ ) the Empirical rule establishes that the intervals:

( μ  ±  σ  )          contains 68,3 % of all values

( μ  ±  2σ  )        contains 95,4 % of all values

( μ  ±  3σ  )        contains 99,7 % of all values

If   N ( 256,3 ; 66,8 )

σ  =  66,8        ⇒   3*σ  = 3 * 66,8  = 200,4

Then:     256,3 - 200,4  =  55,9

And        256,3 + 200,4 = 456,7

a) In the interval  (  55,9  ;   456,7 ) we will find 99,7 % of all values

b) 2*σ  = 2 * 66,8  = 133,6

Then  256,3 - 133,6  = 122,7

And    256,3 + 133,6 = 389,90

Then in the interval  (  122,7  ;  389,9 ) we find 95,4 % of all values

4 0
3 years ago
At the charity drive , Jeremiah must stuff at least 350 bags with cans of food . He can stuff 4 bags in one minute,and he has 90
Ostrovityanka [42]
4m + 90 = ≥ 350
350 - 90 = 260 ÷ 4 = 65

It will take at least 65 minutes for Jeremiah to complete the task. 

Replace the variable with 65 to double check.
4 (65) + 90 = 350
5 0
3 years ago
Read 2 more answers
3x to the second power + 7x + 2
Mrrafil [7]

you cant add 3x^2 and 7x + 2 :)

you put it in the correct order by the degree :)

8 0
3 years ago
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The floor of a warehouse is 60m long 40m wide. find the cost of polishing the floor plzzz helpp​
xeze [42]

Answer:

Rs 192000

Step-by-step explanation:

area of floor = l*b

=60 * 40

=2400 m^2

cost of polishing per square cm of the floor is Rs 80

cost of polishing floor = 2400 * Rs 80

=Rs 192000

5 0
3 years ago
I need help with 38 and how you got the answer as I’m confused
Blababa [14]

A loss of 36 points is -36. A gain of 24 points is +24.

-36 + 24 = -12

This means that there was a loss of twelve points.

3 0
3 years ago
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