Answer:
612 adults & 361 students
Step-by-step explanation:
Answer:
P(B/C) = 0.3333
Step-by-step explanation:
let's call B the event that a woman was wearing a belt and C the event that a woman was carrying a purse.
The probability P(B/C) that a woman was wearing a belt, given that the woman was also carrying a purse can be calculated as:
P(B/C) = P(B∩C)/P(C)
Where P(C) is the probability that a woman was carrying purse and P(B∩C) is the probability that the woman was both carrying purse and wearing belt.
So, P(C) is calculated as:
P(C) = 18 / 30 = 0.6
Because there were 30 women that walked by in an hour and of those women, 18 were carrying purses.
At the same way, P(B∩C) is equal to:
P(B∩C) = 6 / 30 = 0.2
Finally, P(B/C) is equal to:
P(B/C) = 0.2/0.6 = 0.3333
Answer:
-360
Step-by-step explanation:
b^2-4ac=(-6)^2-4(9)(11)
=36-396
=-360
You have to find the common least common multiple for both denominators. For example, on number 2, The denominators are 3 and 4 the least common multiple of those numbers is 12 because 3 times 4 equals 12 and 4 times three equals 12. An easy way to find this is to list the multiple of both numbers until you find a match. Like this:
Multiples of 3: 3, 6, 9, 12, 15
Multiples of 4: 4, 8, 12, 16, 20
You can see that the smallest number they both have the same is 12. So the answer would be 12. Here are the answers for another one of the questions:
Number 3:
Multiples of 3: 3,6,9,12,18
Multiples of 6: 6,12,18
Common denominator: 6