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Verdich [7]
2 years ago
11

Which system of equations has one solution? –5x – 10y = 24 5x 10y = 16 3x 4y = –7 –3x – 4y = 7 –12x 8y = 16 12x – 8y = 16 –2x 7y

= –5 2x 7y = –9.
Mathematics
1 answer:
Olin [163]2 years ago
5 0

The system of equation that has one solution is: (d) –2x+ 7y = –5  and 2x +7y = –9

<h3>What are systems of equations?</h3>

This is a group of equations which may have none, one or more solutions.

From the list of given options, the system of equations that has one solution is:

–2x+ 7y = –5  and 2x +7y = –9

This is so because, the solution is (-1,-1)

However, the other systems have infinite many solutions

Read more about system of equations at:

brainly.com/question/13729904

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Eight teams are competing in the quarter-finals of a world football championship title. Three out of them are European.
zhuklara [117]

Answer: P(none of them Europeans play against each other)=\frac{5}{14}

Explanation:

Since there are 8 teams in which 3 are Europeans.

So, remaining 5 teams are not Europeans

We have to take 2 teams to pair up.

And we have a condition that neither of team is European.

So the favourable outcome =\binom{5}{2}

and the total outcomes=\binom{8}{2}

So, by using theprobability formula i.e.

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8 0
3 years ago
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