1/3 cup of flour is used to make 5 dinner rolls.
2 answers:
we know that
cup of flour is used to make dinner rolls.
Part a) How much flour is needed to make one dinner roll?
by using proportion
therefore
the answer Part a) is
To make one dinner roll is needed cup of flour
Part b) How many cups of flour are needed to make 3 dozen dinner rolls?
Multiply the value obtained in part a) by
so
therefore
the answer Part b) is
To make dozen dinner rolls are needed cup of flour
Part c) How many rolls can you make with 5 2/3 cups of flour?
by using proportion
therefore
the answer part c) is
rolls
A) 1/3 ÷ 5 = 1/3 x 1/5 (the reciprocal of 5) or 1/15 cup to make a single dinner roll
B) 1/15 x 36 (3 dozen) = 36/15 2
cups or 2
cups
C) 5 2/3 ÷ 1/15 = 17/3 x 15/1 = 225/3 = 85 rolls
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