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Usimov [2.4K]
3 years ago
10

Jill is in Math Club. There are 20 students in the club. The sponsor will pick two students at random to run the meeting. What i

s the Probability that Jill will not be picked? Give answer as a decimal.
Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0
In total there are 20 students and 2 students will be picked.

So far, you have \frac{2}{20}.

You can simplify that to \frac{1}{10}.

To turn that into a decimal, divide 1÷10. You will get 0.1 


BartSMP [9]3 years ago
3 0
Jill is one of the 18 students out of 20 students in the club that will not be picked.

18/20 = 0.9

The probability that Jill will not be picked is a 0.9 chance (90%).<span />
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Give another name plane L
horrorfan [7]

Answer:

Any one of these three works:

plane MOU

plane MNU

plane NOU

Step-by-step explanation:

A plane can be named by a single letter, such as L in this problem, or by any three non-collinear points that lie on the plane. Non-collinear points are points that do not all lie in a single line.

Points M, N, O, and U lie on plane L, so you can choose any 3 of the 4 points to name the plane with, but make sure all 3 points are non-collinear.

To name plane L with points, you cannot use points MNO together since they are collinear, but you can name it using point U plus any two of the points M, N, and O.

plane L can be named

plane MOU

plane MNU

plane NOU

Do not name it plane MNO

6 0
3 years ago
Todd can run 1/2 a mile in 1/12 of an hour. what is todd’s rate in miles per hour?
stiks02 [169]
If he runs 1/2 a mile in 5 minutes then 60 minutes would be 5x12 and 1/2x12 would be 6 so he can run 6 miles per hour
7 0
3 years ago
Read 2 more answers
4.
Lana71 [14]

Answer:

A.

Step-by-step explanation:

If you substitute each answer that is below 18, you will get an answer that is below 30 every time.

8 0
3 years ago
Read 2 more answers
In February, Alec had 1,525 visitors to his website. In March, he had 1,385 visitors to his website. What is the percentage decr
Helga [31]
A proportion box can be used to solve this problem. First, we need to compute the difference or change in the original amount of visitors Alec had (in February) and the new amount of visitors (in March). 

1,525 - 1, 385 = 140

We place this amount (140) in the top left of our box, and we place the original amount (1,525) in the bottom left of our box. We are looking for the percentage decrease, so that box in the upper right will stay empty. The number 100 always goes in the bottom right of our percent proportion box. 

(The attached image will show an example of how to set this up). 

Our last step is to cross multiply and divide. 

140 x 100 = 14,000

14,000 ÷ 1,525 = 9.18

So, the percentage decrease of the number of visitors to Alec's website from February to March was 9.18%. 

5 0
3 years ago
For each 24 mm of coloured fabric Gordon uses to make his curtains, he also uses 1.2 cm of white fabric. Express the amount of w
swat32

Answer:

1 : 2

Step-by-step explanation:

Given that,

amount of coloured fabric Gordon use to make his curtain = 24mm

amount of white fabric Gordon use to make his curtain = 1.2cm

To find,

ratio of the amount of white fabric to coloured fabric

1 cm = 10mm

1.2 cm = 1.2 * 10

           = 12 mm

<h3>Ratio</h3>

12 / 24

1 / 2

1 : 2

So, ratio of the amount of white fabric to coloured fabric is 1 : 2

8 0
3 years ago
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