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2 years ago

Five number have amean of 12,when one number is removed, the mean becomes 11,what is the removed number

Mathematics

1 answer:

Ugo [173]2 years ago

5 0

Answer:

The removed number is 16

Step-by-step explanation:

Five numbers have a mean of 12.

Now;

Mean = Σx/x

Thus; Σx = 12 × 5 = 60

Now,we are told that if one number is removed, the mean is 11.

Thus;

(60 - x)/4 = 11

60 - x = (11 × 4)

60 - x = 44

x = 60 - 44

x = 16

Thus,the removed number is 16

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450 is 75% of what number

Sergeu [11.5K]

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There are the steps that I used to get that </span><span>450 is 75% 0f 600</span>

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erastovalidia [21]

A(1,2)

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3 years ago

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In general, after a group makes a reservation at a restaurant, they do not show up 20% of the time. If a restaurant has 8 reserv

sashaice [31]

Answer:

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Step-by-step explanation:

Multiplication rule for independent events:

If two events A and B are independent then the multiplication rule state that:

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Find the probability that more than two do not show up:

The probability that the reservations at the restaurant do not show up is 0.20 (=20%) and there were 8 reservations.

P(more than 2 don't show up)= 1- P(less than or equal to 2 don't show up)

= 1-( P(none show up) +P(one don't show up)+P(two don't show up)

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3 years ago

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vodomira [7]

Answer:

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Step-by-step explanation:

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2 years ago

Which graph represents the solution set to the system of inequalities? { y<-1/2+2 y>-3/2x+2

Sidana [21]

The graph of the given system of linear inequalities

y < -1/2 + 2

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is attached below

<h3>Graph of system of linear inequalities </h3>

From the given information, we are to graph the given system of linear inequalities

The given system of linear inequalities is

y < -1/2 + 2

y > -3/2x + 2

The graph of the given system of linear inequalities

y < -1/2 + 2

y > -3/2x + 2

is shown below

Learn more on Graph of system of linear inequalities here: brainly.com/question/26965469

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