1/2n + 9 = 27
- 9 - 9
----------------------
1/2n = 18
------ --------
1/2 1/2n
n = 36
2.507
......................................
The answer to your question has been given below :
Mr. Penner has 27 hats
Ms. Blocker has (2/3 of 27) hats
=(27÷3)x2
=9x2
=18 hats
Ms. C has 3 times of Ms. Blocker's hats.
So, Ms. C has (3x18)
= 54 hats. (Ans)
On the graph, it shows that the shortest meeting has lasted for 1/4 of an hour. An hour has 60 mins, you know it the shortest will be 15 minutes.
If its for any other number that you do not know, you can list as a proportion:
1/4 = x/60 (1 and x are on the top of the fractions)
Cross multiply: 1 * 60 = 60
Then divide by the number on the opposite corner of x: 60/4
x = 15
All 3 angles have to add up to be 180 so the answer would be 90
