Suppose you adding 43 and 28 will you regroup ? Explain

Mathematics

2 answers:

shutvik [7]2 years ago

5 0

Yes because when u add 8+3 u get 11 and anything larger than 9 u have to regroup and put the 10's place on top of the 1st number and the 1's place under the sum line then u add the other 2 numbers to get 43+28=71. Hope that helps u

WITCHER [35]2 years ago

3 0

Yes because 8 is bigger than 3.

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deff fn [24]

Since the sum of the probabilities of all possible outcomes must be 100%, we can deduce the following:

Cooking in under 20 minutes: 10%
Cooking between 20 and 30 minutes: 85%
Cooking in more than 30 minutes: 5%

In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.

That being said, all three answers are simply a combination of these three scenarios: let C be the cooking time, for aesthetic reasons:

$P(C\geq 20) = P(20 \leq C \leq 30)+P(C\geq30) = 85\%+5\%=90\%$