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Mamont248 [21]
3 years ago
9

2x + 3y = 6 x + 2y = 5

Mathematics
2 answers:
melisa1 [442]3 years ago
8 0
X
=
−
3
,
y
=
4
.
Explanation:
From the second equation, you know that
x
=
5
−
2
y
. Substitute this expression for
x
in the first equation to get
2
(
5
−
2
y
)
+
3
y
=
6
10
−
4
y
+
3
y
=
6
−
y
=
−
4
y
=
4
Now that we have found
y
, we can find
x
using
x
=
5
−
2
y
→
x
=
5
−
2
⋅
4
=
−
3

HOPE I HELPED :)
frutty [35]3 years ago
6 0

Answer:

y=4, x=-3

Step-by-step explanation:

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Hello help please and thanks
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48.

Step-by-step explanation:

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You can check your answer by subtracting 48-15, which gives you 33.

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The Johnson family is taking a car trip. They are driving at an average speed of 60 miles per hour. The graph shows their distan
FromTheMoon [43]
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3 years ago
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Will give brainlyest
faust18 [17]

Answer: (1) 42%, (2) 60%, (3) 75%.


Step-by-step explanation: The calculations are as follows

(1) Given that

P(A) = 0.70,  P(B) = 0.25  and P(A and B) = 0.30 ≠ 0. So, the conditional probability of even B when event A has already occured is given by

P(B/A)=\dfrac{p(B\cap A)}{P(A)}=\dfrac{0.30}{0.70}=0.42.

Therefore, the answer is 42%. Also, since the intersection of A and B is not a null set, so these events are dependent events.

(2) Given that

P(A) = 0.40,  P(B) = 0.60  and P(A and B) = 0.24 ≠ 0. So, the conditional probability of even B when event A has already occured is given by

P(B/A)=\dfrac{p(B\cap A)}{P(A)}=\dfrac{0.24}{0.40}=0.60.

Therefore, the answer is 60%. Also, since the intersection of A and B is not a null set, so these events are dependent events.

(3) Given that

P(A) = 0.33,  P(B) = 0.50  and P(A and B) = 0.25 ≠ 0. So, the conditional probability of even B when event A has already occured is given by

P(B/A)=\dfrac{p(B\cap A)}{P(A)}=\dfrac{0.25}{0.33}=0.75.

Therefore, the answer is 75%. Also, since the intersection of A and B is not a null set, so these events are dependent events.

Thus, the answers are 42%, 602% and 75%.

8 0
3 years ago
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