Remember, percent is always out of 100. If you have 22%, you have 22 people per every 100 people, or, 22/100.
22/100 is the incomplete answer because it needs to be simplified. If you divide both numbers by two you get 11/50 which is the lowest fraction you can have because 11 is a prime number.
Answer:
a) Each individual act will last 5 minutes.
b) Each group act will last 10 minutes.
Step-by-step explanation:
I think this is right
Answer:
(8, -1)
Step-by-step explanation:
the solution is where they intersect. (x, y) and x is 8 while y is -1
Answer:
Step-by-step explanation:
Let assume that Suppose the chance of contracting malaria is 10% for those who are not vaccinated ; (since the value) is not given.
Thus;
If the vaccine has no effect, risk of malaria for vaccine and no vaccine are equal to 0.1
Probability of not getting malaria if vaccinated or no vaccinated = 1 - 0.1 = 0.9
Malaria No Malaria Total
Vaccinated 100 * 0.1 = 10 100 * 0.9 = 90 100
No Vaccine 200 * 0.1 = 20 200 * 0.9 = 180 300-100 = 200
Total 20 + 10 = 30 90 + 180 = 270 300
If the vaccine cuts the risk by half, risk of malaria for vaccinated are equal to 0.1/2 = 0.05
Probability of not getting malaria if vaccinated = 1 - 0.05 = 0.95
Malaria No Malaria Total
Vaccinated 100 * 0.05 = 5 100 * 0.95 = 95 100
No Vaccine 200 * 0.1 = 20 200 * 0.9 = 180 300-100 = 200
Total 20 + 5 = 25 90 + 180 = 275 300
Cotangent = adjacent / opposite = x / y = 6/8 = 3/4
Answer 3/4
