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Nataliya [291]
3 years ago
7

20.There is an 80% chance David will eat a healthy breakfast and a 25% chance that it will rain. If these events are independent

, what is the probability that David will eat a healthy breakfast or that it will rain A.20% B.80% C.85% D.95% E.105%
Mathematics
1 answer:
Mariulka [41]3 years ago
4 0

Answer:

A. 20%

Step-by-step explanation:

These events are independent, because if David eats a healthy breakfast cannot influence on would be rain or not.

"And" for probabilities  of independent events means "x" (times).

80% = 0.8

25% = 0.25

0.8*0.25 = 0.2 = 20%

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I can solve with 2 methods:

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II. The discount is 15 % of 18$
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then I decrease it from the regularly price
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Personally I believe the first is an easier method.
I hope you understand and you can apply this in every similary problem.



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