Answer:3
Step-by-step explanation:
Side by side on the left ,side by side on the right and two in the middle
4.) 3/100 = 0.03
5.) 73% = 0.73
6.) 0.1 = 10%
7.) 254% = 2.54
I hope this is what you're looking for!
You can write 2311 and 3912 in the form
:


Then


Taken modulo 20, the terms containing powers of 20 vanish and you're left with

We further have

so we end up with

and so
.
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If instead you're trying to find
, you can apply Euler's theorem. We can show that
using the Euclidean algorithm. Then since
, and 8 divides 3912, we have

To show 2311 and 20 are coprime:
2311 = 115*20 + 11
20 = 1*11 + 9
11 = 1*9 + 2
9 = 4*2 + 1 => gcd(2311, 20) = 1