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Of 30 snakes at the reptile house, 10 have stripes, 21 are poi

Question

Of $30$ snakes at the reptile house, $10$ have stripes, $21$ are poisonous, and $5$ have no stripes and are not poisonous. How many of the snakes have stripes AND are poisonous?

5

6

10

8

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30

snakes at the reptile house,

10

have stripes,

21

are poisonous, and

5

have no stripes and are not poisonous. How many of the snakes have stripes AND are poisonous?

7 mins ago

Discuss this question LIVE

7 mins ago

Text solutionVerified

Use a double-set matrix to solve this problem. First, fill in the numbers given in the problem:

30

snakes,

10

with stripes (and therefore

20

without),

21

that are poisonous (and therefore

9

that are not), and

5

that are neither striped nor poisonous. Use subtraction to fill in the rest of the chart. Thus,

6

snakes have stripes and are poisonous.

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Question Text	Of $30$ snakes at the reptile house, $10$ have stripes, $21$ are poisonous, and $5$ have no stripes and are not poisonous. How many of the snakes have stripes AND are poisonous?
Answer Type	Text solution:1
Upvotes	150