40:10 is equivalent to 2:0.5
Think of it as a fraction. (40/10) We can then reduce that. So we divide 10 by 10 and what we do to one side we have to do to the other so we divide 40 by 10 and we get 4/1 we can then divide both sides by 2 and get 2/0.5 or 2:0.5 :D
New temperature: -6°
-8 +2= -6
One example is when n is 11. 11^2 + 4 = 125. 11 is odd but the 11th term of the sequence, 125, is not prime because 125 is divisible by 5 and 25.
The answer is 6.875 ish. not exact
