Answer:
(See explanation below for further details)
Step-by-step explanation:
First, each ingredient is recalculated herein:
Butter
[tex]\frac{30}{20}\times \frac{1}{2}[/tex]
[tex]\frac{3}{2} \times \frac{1}{2}[/tex]
[tex]\frac{3}{4}[/tex]
Sugar
[tex]\frac{30}{20}\times \frac{4}{3}[/tex]
[tex]\frac{3}{2} \times \frac{4}{3}[/tex]
[tex]2[/tex]
Baking soda
[tex]\frac{30}{20} \times \frac{1}{4}[/tex]
[tex]\frac{3}{2} \times \frac{1}{4}[/tex]
[tex]\frac{3}{8}[/tex]
Egg
[tex]\frac{30}{20} \times \frac{2}{2}[/tex]
[tex]\frac{3}{2} \times \frac{2}{2}[/tex]
[tex]\frac{3}{2}[/tex]
Vanilla
[tex]\frac{30}{20} \times \frac{1}{2}[/tex]
[tex]\frac{3}{2} \times \frac{1}{2}[/tex]
[tex]\frac{3}{4}[/tex]
Flour
[tex]\frac{30}{20} \times \frac{3}{2}[/tex]
[tex]\frac{3}{2} \times \frac{3}{2}[/tex]
[tex]\frac{9}{4}[/tex]
The Sugar Cookies recipes is re-written as follows:
3/4 c. butter
2 c. sugar
3/8 tsp baking soda
2 eggs
3/4 tsp vanilla
2 1/4 c. flour