So, in order to find the answer, this is what we are going to do.
Let K be the number of candies that Kahi can eat per hour and S be the number of candies that her sisters can eat per hour.
So for the sisters, let us divide 32 by 3 and we get, 10.67. so 10.67/ hour.
Now, consider this expression: <span>(K+S)*h = 32
Plug in the given values.
(32 +10.67)h = 32
42.67h = 32
Divide both sides by 42.67 and we get
h= 1.33. Therefore, it will take 1.33 hour for both of them together to eat 32 candies. Hope this answer helps.</span>
Step-By-Step Explanation:
1. 20.95 x 1 = 20.95
2. 119.5 x 2 = 239
3. 8.75 x 5 = 77.5
4. 24.25 x 7 = 169.75
5. 52.3 x 3 = 156.9
6. 0.4
7. 0.4
8. 0.4
9. 0.7
10. 0.5
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Answer:
a
Step-by-step explanation:
They make a right angle. A right angle adds up to 90.
We know that
the area A of the circular cross section of the pipe is
A=pi*r²
D=20 cm------------- > r=D/2=20/2=10 cm
then
A=pi*10²=100*pi cm²
the answer is A=100*pi cm²
