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scoundrel [369]
3 years ago
9

What are two numbers that add up to 43 and their difference is 11?

Mathematics
1 answer:
LiRa [457]3 years ago
4 0

Answer:

27 and 16

Step-by-step explanation:

x + y = 43

x - y = 11

You can add up the two equations so the ys are cancelled out.

2x = 54

x = 27

Plug x in to find y.

27 - y = 11

y = 16

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150

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3 years ago
If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x
sashaice [31]
Given that D is the mid point of CE ,


So D will bisect CE, it means the length of DE and CD is equal.


=> DE + CD = CE



As DE and CD are equal,



=> DE + DE = CE

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Putting values from the question,


=> 2( 7x - 1 ) = 10x + 18

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7 0
3 years ago
Read 2 more answers
A carpet square is 9inches what’s the area of the carpet square?
AleksAgata [21]

Answer:

The area of the carpet which is square in shape is  81 inches^2

Step-by-step explanation:

Given:

side of the carpet square  = 9 inches

To Find:

area of the carpet square = ?

Solution:

The area of the carpet =  area of the square

we know that the area of the square  is

=> side X side

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6 0
3 years ago
A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where What is the probability th
krok68 [10]

Answer:

The probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...

What is the probability that at least 5 people attend the meeting given that at least 2 attend?

The explanation of the answer is now provided as follows:

Given:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...                    (1)

Since it is given that at least 2 attend, it implies that we need to calculate P(x) at x = 2.

Substituting x = 2 into equation (1), we have:

P(X = 2) = 1 / 2^(2 + 1)

P(X = 2) = 1 / 2^3

P(X = 2) = 1 / 8

P(X = 2) = 0.1250, or 12.50%

Therefore, is the probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

7 0
3 years ago
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