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kramer
3 years ago
15

The wilsons have triplets and another child who is the twelve years old. The sum of the ages of their children is 39. How old ar

e the triplets
Mathematics
1 answer:
Reil [10]3 years ago
8 0
The triplets are each 9 years old.

You can subtract 12 from 39 to get 27, then divide by 3 because of the three other kids
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Galina-37 [17]
Since the events are dependent, the probability of occurrence of event B will impact the probability of occurrence of event A. So we will be using the formula of conditional probability to find P(A ∩ B).

P(A|B)= \frac{P(A*B)}{P(B)} \\  \\ 
P(A*B)=P(A|B)P(B)

Here P(A*B) indicates P(A ∩ B).

Using the values, we get:

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3 years ago
the points (3, 9) and (-3, -9) ate plotted on the coordinate plane using the equation y=a . x ... - did
slava [35]

See the explanation

<h2>Explanation:</h2><h2></h2>

Here we have the following points:

(3,9) \ and \ (-3,-9)

The point-slope form of the equation of a line is:

y=ax+b \\ \\ \\ a:Slope \\ \\ b:y-intercept

So the slope can be found as:

a=\frac{-9-9}{-3-3} \\ \\ a=\frac{-18}{-6} \\ \\ a=3

So:

y=3x+b \\ \\ \\ Finding \ b: \\ \\ For \ x=3, \ y=9: \\ \\ \\ So: \\ \\ 9=3(3)+b \\ \\ b=9-9 \\ \\ b=0

So the equation is finally:

y=3x

This line passes through and is shown below.

<h2>Learn more:</h2>

About lines: brainly.com/question/14427236#

#LearnWithBrainly

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