Answer:
i think it is the 3rd one
Step-by-step explanation:
Answer:
All three chose a valid first step toward solving the equation.
All approaches are algebraically correct
Lets x = missing angle
x = 180 - (60+80)
x = 180 - 140
x = 40
answer
40
'of' in mathematics means multiplication
'is' in mathematics means equal
52% * x = 13
52/100 * x = 13
0.52x = 13
x = 13/0.52
x = 25
52% of 25 days is 13 days.
Answer:
36 people
Step-by-step explanation:
The expected value E(X) = mean of sample = np
Where, p = population proportion, p = 9% = 0.09
n = sample size, = 400
The mean of the number of people with genetic mutation, E(X) = np = (400 * 0.09) = 36
36 people