A recipe for 114 dozen cupcakes calls for 123 cups of flour, but Rashida has only 1 cup of flour. How many cupcakes can she make? Hint: Pay close attention to the units! Enter your answer as a mixed number. For example, if your answer is 4212, enter 42 1/2

Respuesta :

Answer:

9 cups

Step-by-step explanation:

Given

[tex]1\frac{1}{4}\ dozen\ cupcakes = 1\frac{2}{3}\ cups[/tex]

Required

Determine the number of cupcakes for 1 flour

Represent this with x

[tex]x = 1\ cup[/tex]

[tex]1\frac{1}{4}\ dozen\ cupcakes = 1\frac{2}{3}\ cups[/tex]

Cross Multiply

[tex]x * 1\frac{2}{3}= 1\frac{1}{4}\ dozen * 1[/tex]

[tex]1\frac{2}{3}x = 1\frac{1}{4}\ dozen[/tex]

Convert fractions to improper fraction

[tex]\frac{5}{3}x = \frac{5}{4}\ dozen[/tex]

Solve for x

[tex]x = \frac{5}{4} * \frac{3}{5}\ dozen[/tex]

[tex]x = \frac{3}{4}\ dozen[/tex]

[tex]1\ dozen = 12[/tex]

So, we have:

[tex]x = \frac{3}{4} * 12[/tex]

[tex]x = 9\ cups[/tex]