SOLUTION: A 2-cup mixture consists of 1/3 flour and 2/3 cornmeal. If 1 cup of flour is added to make a 3- cup mixture, approximately what percent of the 3-cup mixture is flour?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: A 2-cup mixture consists of 1/3 flour and 2/3 cornmeal. If 1 cup of flour is added to make a 3- cup mixture, approximately what percent of the 3-cup mixture is flour?      Log On


   



Question 1092992: A 2-cup mixture consists of 1/3 flour and 2/3
cornmeal. If 1 cup of flour is added to make a 3- cup mixture, approximately what percent of the 3-cup mixture is flour?

Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
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A 2-cup mixture consists of 1/3 flour and 2/3
cornmeal
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Just that much means the recipe initially was expected to be:
TWO-CUP MIXTURE
1%2F3, cup of flour
2%2F3, cup of cornmeal
1, cup of other ingredients



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If 1 cup of flour is added to make a 3- cup mixture, approximately what percent of the 3-cup mixture is flour?
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Now, total flour is 1%2F3%2B1=1%261%2F3
and
total amount of cups of mixture became 3, as given.
What percent as flour?
%28%281%261%2F3%29%2F3%29100

%28%284%2F3%29%2F3%29100

%284%2F9%29%2A100

44.44444444...

44% flour, the new mixture, approximately

Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
.
1%2F3 of the 2-cup mixture is exactly 2%2F3 cup of floor.      <<<---=== A 2-cup mixture consists of 1/3 flour and 2/3 cornmeal.


After adding 1 cup of floor we have 12%2F3 = 5%2F3 cup of floor.


Now, the ratio  %285%2F3%29 : 3 = 5%2F9 = 0.5555 = 55.55%.


Answer.   Approximately what percent of the 3-cup mixture is flour?  -   55.55%.   Approximately.



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