Answer:
P(B) = 0.85
Step-by-step explanation:
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
These events are independent.
This means that 
. So
So
The original number was: " 14 " .
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a + 5 = b ;
b * 7 = 133 .
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What is: "a" ?
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133 / 7 = 19 = b ;
a + 5 = b = 19 ;
a + 5 = 19 ;
Subtract "5" from each side of the equation;
to isolate "a" on one side of the equation; and to solve for "a" ;
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a + 5 − 5 = 19 − 5 ;
to get:
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a = 14 .
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Let us check our answer:
Start with "14" ;
Add "5" : "14 + 5 = 19 " .
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then multiply by "7" : "19 * 7"
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and the result is: 133 ?
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19 * 7 = ? 133 ? Yes!
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Answer:
D
Step-by-step explanation:
∠ A is the angle opposite side a
the sum of the 3 angles in the triangle = 180° , that is
∠ A + 75° + 35° = 180°
∠ A + 110° = 180° ( subtract 110° from both sides )
∠ A = 70°
Answer:
option 2
Step-by-step explanation:
its easier because you can transfer the y to the other side and it gets easier.
2x = -10y
x = 2/-10 y
x = -5y
Answer:
206.
Step-by-step explanation:
100x2 = 200
3x2 = 6
200+6 = 206
