The Purplemath Forums

hi Find the angles that are complimentary and supplementary to A= 34º 19' 42" So, if angle B is complementary to A, then B = 90º - A ok I get that part. here is where my book loses me: so they re-write it like this: B = 90º - 34º 19' 42" ok, so far so good. then they rewrite it again: 89º ...

I'm not sure where to post this question. There is a recipe that calls for 4 oz. of coffee for a 5 gallon batch. I will be making a 3 gallon batch. So how much coffee would I need? I did some looking online and came across this formula: Desired servings/Original servings so I did 3/5 = 0.6 so then w...