of the 2-cup mixture is exactly cup of floor. <<<---=== A 2-cup mixture consists of 1/3 flour and 2/3 cornmeal.
After adding 1 cup of floor we have = cup of floor.
Now, the ratio : 3 = = 0.5555 = 55.55%.
Answer. Approximately what percent of the 3-cup mixture is flour? - 55.55%. Approximately.
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