The probability of Erin not having a heart attack according to her family history would be 30%.
The probability of the test predicting correctly is 67%.
Therefore, the probability of the test correctly predicting that Erin will not have a heart attack would be (0.30)(0.67) = 0.201 or 20.1%.
The answer is
D. (x - 5)(x - 1)
Answer:
6
Step-by-step explanation:
4 x 3 = 12
8 x 3 = 24
12 / 4 = 3
24 / 4 = 6
x must be 6
Answer:
Sydney is 31 years old.
Step-by-step explanation:
LET age of Devon be x years
and let age of Sydney be y years
if x=y-5-------(i)
x+y= 57 (sum)
Using (i)
(y-5)+y=57
2y=62
y=31
