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Julli [10]
3 years ago
11

X + y = 4 2x - 5y = 15 Graphing

Mathematics
1 answer:
sesenic [268]3 years ago
4 0

Answer:

Step-by-step explanation:

5x + 5y = 20

2x - 5y = 15

7x = 35

x = 5

5 + y = 4

y = -1

(5, -1)

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There are 3 people at a party. If each person must shake hands with every other person at the party exactly once, how many hands
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<h2>Answer:</h2>

The total number of handshakes that would happen between the three people are:

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<h2>Step-by-step explanation:</h2>

There are three people at a party.

Let they be denoted by A,B and C.

Now, the total number of handshakes that would occur will be denoted by:

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where AB denotes that A and B shake hands.

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and BC denote that B and C shake hands.

Hence, total number of handshakes are:

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insens350 [35]

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