If the diameter is 16 inches, then its radius is half that, r = 8.
X cancels out, 8y + 2y is equal to 10y, and 26 + 14 is 40, so y=4
Let's say that the temperature it changed is x.
4 (x) =-20.
So basically we're dividing -20 by four, because the temperature changed by -20 degrees over four weeks, so the answer is -5.
We have to apply the rule of three
8 servings--------------------1/2 cup of sugar
26 servings--------------------- x
x=(26 servings*(1/2) cup of sugar) / 26 servings=1.625 cup of sugar.
