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2 years ago

7

How do i solve this inequality? Number 46

1 answer:

myrzilka [38]2 years ago

7 0

6(x-2.5) ≥ 8-6(3.5+x)

A number is before a parenthesis. The first step is to multiply.

6(x-2.5) = 6x -15

8-6(3.5+x)
2(3.5+x)= 7+2x

6x-15≥7+2x

Now solve

6x-15≥7+2x
-2x -2x

(-2x+2x)= They cancel out

(6x-2x)= 4x

4x-15≥7
+15 +15

4x≥22
/4 /4

You get= x≥5.5

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Conditional Probability

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This means that $P(A) = 0.45$

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$P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36$

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