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 ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> 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 1043612: 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 josmiceli, stanbon:
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
What are the actual fractions of the 2-cup mixture?
+2%2A%281%2F3%29+%2B+2%2A%282%2F3%29+=+2+ cups total
Now add +1+=+3%2F3+ cup of flour
+%28+2+%2B+3+%29%2A%281%2F3%29+%2B+2%2A%282%2F3%29+=+5%2F3+%2B+4%2F3+
+5%2F3+%2B+4%2F3+=+9%2F3+
+9%2F3+=+3+ cups of mix total
-----------------------
The FRACTION of the 3-cup mix is:
+%285%2F3%29+%2F+%289%2F3%29+=+5%2F9+
+5%2F9+=+.5555+
The approximate % is
55.6%
-----------
Hope I got it!

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
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?
------
# of cups:: 3 cups
# of cups of flour:: (1/3)(2) + 1 = 5/3 cup
----
Percent of flour = (5/3)/3 = 5/9 = 0.555.. = 55.6%
-----------------------------
Cheers,
Stan H.
------------------