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2 years ago

9

There are 54 students in a class. The Venn diagram below shows how many students play a sport, take a foreign language, do both,

or do neither.
Pls help!

1 answer:

andrew11 [14]2 years ago

4 0

Doesn't play sport

Plays sport |

| |

V V

Takes language | 21 | 17 |

-----------------

Doesn't take language | 12 | 4 |

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$\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)$

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