Answer:
50%
Step-by-step explanation:
Let :
Winter = W
Summer = S
P(W) = 0.85
P(S) = 0.65
Recall:
P(W u S) = p(W) + p(S) - p(W n S)
Since, none of them did not like both seasons, P(W u S) = 1
Hence,
1 = 0.85 + 0.65 - p(both)
p(both) = 0.85 + 0.65 - 1
p(both) = 1.50 - 1
p(both) = 0.5
Hence percentage who like both = 0.5 * 100% = 50%
go on
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
y - 3 = 5(x - 2)
y - 3 = 5x - 10 Add 3 to both sides
y = 5x - 7
Let x = 2
y = 5*2 - 7
y = 3
So (2,3) works
Let x = 3
y = 5*3 - 7
y = 15 -7
y = 8
The answer is A
Answer:
The angles are 50 , 40
Step-by-step explanation:
Let 'x' be an angle.
So, its complementary angle = 90 - x
Difference of complimentary = 10
x - (90 - x) = 10
x - 90 + x = 10
x + x - 90 = 10
2x - 90 = 10
2x = 10 +90
2x = 100
x = 100/2
x = 50
So, the angles are 50 , 40
