A recipe for chocolate chip cookies calls for cups of flour and 1 cup of sugar. The recipe will make dozen cookies. How many cups of flour will be needed to make dozen cookies? Round your answer to the nearest fourth of a cup.
A) cups
B) cups
C) cups
D) cups
E) cups

Question

A recipe for chocolate chip cookies calls for  cups of flour and 1 cup of sugar. The recipe will make  dozen cookies. How many cups of flour will be needed to make  dozen cookies? Round your answer to the nearest fourth of a cup.
A) cups 
B) cups 
C) cups 
D) cups 
E) cups

Quizplus · Accepted Answer

To find the answer, we need to use ratios. We know that the original recipe calls for 1 cup of sugar and 11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11 cups of flour to make 11ec187c_7503_89b3_b8be_e76537b720a9_TBX8672_11 dozen cookies. That means the ratio of sugar to flour is 1:11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11.

To find out how much flour is needed for 11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11 dozen cookies, we can set up a proportion:

1:11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11 = x:11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11

Simplifying this proportion, we get:

1/11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11 = x/11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11

Cross-multiplying, we get:

11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11x = 11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11

Dividing both sides by 11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11, we get:

x = 11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11/11ec187c_7503_89b2_b8be_97e212241683_TBX8672_11

Simplifying this fraction, we get:

x = 11ec187c_7503_89b6_b8be_f788d91c6141_TBX8672_11

Therefore, we need 11ec187c_7503_89b6_b8be_f788d91c6141_TBX8672_11 cups of flour to make 11ec187c_7503_89b4_b8be_81942d56d742_TBX8672_11 dozen cookies, which is approximately 11ec187c_7503_89b6_b8be_f788d91c6141_TBX8672_11 cups, or choice B.

A Recipe for Chocolate Chip Cookies Calls for Cups