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Alexxx [7]
2 years ago
5

If 5-3(2a+1)=-4+10, what is the value of a+2​

Mathematics
2 answers:
givi [52]2 years ago
7 0

\\ \rm\Rrightarrow 5-3(2a+1)=-4+10

\\ \rm\Rrightarrow 5-6a-3=6

\\ \rm\Rrightarrow -6a+2=6

\\ \rm\Rrightarrow -6a=6-2

\\ \rm\Rrightarrow -6a=4

\\ \rm\Rrightarrow a=\dfrac{4}{-6}

\\ \rm\Rrightarrow a=\dfrac{2}{-3}

Now

\\ \rm\Rrightarrow a+2

\\ \rm\Rrightarrow \dfrac{2}{-3}+2

\\ \rm\Rrightarrow \dfrac{2-6}{-3}

\\ \rm\Rrightarrow \dfrac{-4}{-3}

\\ \rm\Rrightarrow \dfrac{4}{3}

Zepler [3.9K]2 years ago
4 0

Answer:

7/3

Step-by-step explanation:

5 - 3(2a+1) = -4 + 10

=> 5 - 6a + 3 = 6

=> 5 - 6 + 3 = 6a

=> 2 = 6a

=> 6a = 2

=> a = 2/6

=> a = 1/3

a + 2

1/3 + 2

=> 1/3 + 6/3

=> 7/3

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Step-by-step explanation:

First of all;

Let B1 be the event that the card with two red sides is selected

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Let A be the event that the upper side of the selected card (when put down on the ground)

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Now, from the question;

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Now, we want to find the probability that the other side is colored black if the upper side of the chosen card is colored red. This probability is; P(B3|A). Thus, from the Bayes’ formula, it follows that;

P(B3|A) = [P(B3)•P(A|B3)]/[(P(B1)•P(A|B1)) + (P(B2)•P(A|B2)) + (P(B3)•P(A|B3))]

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2 years ago
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