Total angle=360=5*72
<span><span>area=5∗16.4π y<span>d2</span>=82π=82∗3.14 y<span>d2</span></span></span>
0.51 is the answer since the nine converts the zero before it to a 1
1600÷2... 800
-------- = ----------
1654÷2.... 827
Scale factor: f=0.5
AB=2.2
LM=?
LM=f x AB=0.5 x 2.2 →LM=1.1
The length of LM is 1.1
We'll start by calling the number of pigeons we started with x, because it's the unknown.
After she clapped 1/3 flew away so she was left with
(1 - 1/3) x = (2/3) x
Two flew back, so now there are
(2/3) x + 2
She clapped again and half left, half stayed, so now
(1/2) ( (2/3) x + 2 )
One came back and there were five,
(1/2) ( (2/3) x + 2 ) + 1 = 5
Solving is unraveling.
(1/2) ( (2/3) x + 2 ) = 4
(2/3) x + 2 = 8
(2/3) x = 6
x = (3/2) 6 = 9
Answer: 9 pigeons
Check: Reviewing the story, 9 -> 6 -> 8 -> 4 -> 5 good
