Answer:
y(t) = 391 - 30t
Step-by-step explanation:
The weekly difference is 391-361 = 30
y(t) = 391 - 30t.
With t being the number of weeks.
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
Since there is three circles 6×3 is 18 so the diameter is 6 half of that is 3 so if would be r×r×π so it's 3×3×3 sorry if I'm wrong hoped that helped
67.5 or 135/2 or 67 1/2 they are all the same
Answer:
yes
Step-by-step explanation:
4 7/9 can be rewritten as 4 14/18
2 1/3 can be rewritten as 2 6/18
now the sum can be calculated:
4 14/18 + 2 6/18 = 6 20/18 = 7 2/18
This is within the tolerance of 7 1/18 to 7 3/18, so it will fit.
