Alexis is making cookies. The recipe says that she has to mix 192 grams of sugar into the flour. Alexis knows that 1 cup of this particular sugar has a mass of 128 grams. How many cups does she need?
EDIT: Okay, I found it out for anyone wondering. It's 1 1/2 cups.
For this case we can make the following rule of three: 1 cup ----------------> 128 grams x ----------------------> 192 grams From here, we clear the value of x. We have then: x = (192/128) * (1) x = 1.5 x = 1 1/2 Answer: She needs about 1 1/2 cups.