kamo90
25.06.2019 •
Mathematics
What is the answer for this question
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Ответ:
1 - 1/10
Step-by-step explanation:
As strange as it may seem, the easiest way to answer this question is to calculate the probability of selecting an elephant first and then to subtract this probability from 1:
Adding up the Numbers of animals, we get 12+4+3+11, or 30. The probability of selecting an elephant is thus 3/30, or 1/10.
Thus, the probability of NOT selecting an elephant is 1 - 1/10 (Answer A).
Ответ:
The last option.
Step-by-step explanation:
1. By definition the ratio of the perimeter is the same as the scale factor.
2. Keeping this on mind, you can calculate the scale factor as shown below:
3. You can rewrite it as following:
4:3
4. Therefore, the ratio of the perimeter is 4:3