To make 1 1/2 dozen muffins, a recipe uses 3 1/2 cups of flour. How many cups of flour are needed for every dozen muffins made? Enter your answer in the box as a mixed number in simplest form.
ratio and proportion
convert to inproper fracton first
1 and 1/2=1+1/2=2/2+1/2=3/2
3 and 1/2=3+1/2=6/2+1/2=7/2
3/2dozen=7/2cups
times 2 both sides
3dozen=7cups
divide by 3 both sides
1dozen=7/3cups=2 and 1/3 cup
Answer: There are \(2\dfrac{1}{3}\) cups of flour needed.
Step-by-step explanation:
Since we have given that
Number of dozen muffins = \(1\dfrac{1}{2}=\dfrac{3}{2}\)
Number of cups of flour = \(3\dfrac{1}{2}=\dfrac{7}{2}\)
So, we need to find the number of cups of flour are need for every dozen muffins made.
Number of cups of flour is given by
\(\dfrac{7}{2}\div \dfrac{3}{2}\\\\=\dfrac{7}{2}\times \dfrac{2}{3}\\\\=\dfrac{7}{3}\\\\=2\dfrac{1}{3}\)
Hence, there are \(2\dfrac{1}{3}\) cups of flour needed.