What are the steps to answer this question? Jeff is baking a cake. The recipe says that he has to mix 32 grams of powder to the flour. Jeff knos that 1 cup of that particular powder has a mass of 128 grams. He added 2/3 of a cup of powder to the flour. Should Jeff add more powder to make the exact recipe, or did he go over and by what amount?

Question

Ronan Farrell

Mathematics

18 October, 22:54

What are the steps to answer this question? Jeff is baking a cake. The recipe says that he has to mix 32 grams of powder to the flour. Jeff knos that 1 cup of that particular powder has a mass of 128 grams. He added 2/3 of a cup of powder to the flour. Should Jeff add more powder to make the exact recipe, or did he go over and by what amount?

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Answers (1)

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Patricia Wade · Answer 1

Well what I would do first is to divide 128 by 32 which I do believe gets you 4. So now you know that 1 cup of powder can make 4 servings. So you now know that each serving only requires 1/4 cup of the powder.

So now we know Jeff went over so now we have Jeff added 2/3 and he only needs 1/4. I would now make them both equivalent by multiplying the numerator and denominator of 2/3 by 4 and the same for 1/4 but instead by 4 multiply it by 3 which you would get 2/3=8/12 and 1/4=3/12. Now subtract the two to get your answer.

8/12-3/12=5/12

Answer: He went over and he needs to remove 5/12 of the cup