To make a quiche, you need 1 tablespoon of butter for every 6 eggs. Write a ratio that compares these two quantities. Which ratios are equivalent to this ratio? Check all that apply.

- [tex]\frac{12 \text{ eggs }}{2 \text{ tbsp }}[/tex]
- [tex]\frac{15 \text{ eggs }}{3 \text{ tbsp }}[/tex]
- [tex]\frac{24 \text{ eggs }}{4 \text{ tbsp }}[/tex]
- [tex]\frac{9 \text{ eggs }}{1.5 \text{ tbsp }}[/tex]

Answer :

To solve the problem of finding which ratios are equivalent to the ratio of 1 tablespoon of butter for every 6 eggs, let's break it down step by step:

1. Understanding the original ratio:
- The quiche recipe uses 1 tablespoon of butter for every 6 eggs.
- This ratio can be expressed as [tex]\( \frac{6\, \text{eggs}}{1\, \text{tbsp}} \)[/tex].

2. Equivalent ratios:
- Two ratios are equivalent if they represent the same relationship when simplified.

3. List of given ratios:
- [tex]\( \frac{12\, \text{eggs}}{2\, \text{tbsp}} \)[/tex]
- [tex]\( \frac{15\, \text{eggs}}{3\, \text{tbsp}} \)[/tex]
- [tex]\( \frac{24\, \text{eggs}}{4\, \text{tbsp}} \)[/tex]
- [tex]\( \frac{9\, \text{eggs}}{1.5\, \text{tbsp}} \)[/tex]

4. Checking the equivalency:
- A ratio is equivalent to [tex]\( \frac{6\, \text{eggs}}{1\, \text{tbsp}} \)[/tex] if when simplified, it equals 6 eggs for every 1 tablespoon of butter.

5. Simplifying each ratio:
- [tex]\( \frac{12\, \text{eggs}}{2\, \text{tbsp}} = \frac{6}{1} \)[/tex] (equivalent)
- [tex]\( \frac{15\, \text{eggs}}{3\, \text{tbsp}} = \frac{5}{1} \)[/tex] (not equivalent)
- [tex]\( \frac{24\, \text{eggs}}{4\, \text{tbsp}} = \frac{6}{1} \)[/tex] (equivalent)
- [tex]\( \frac{9\, \text{eggs}}{1.5\, \text{tbsp}} = \frac{6}{1} \)[/tex] (equivalent)

6. Conclusion:
- The ratios that are equivalent to the original ratio [tex]\( \frac{6\, \text{eggs}}{1\, \text{tbsp}} \)[/tex] are:
- [tex]\( \frac{12\, \text{eggs}}{2\, \text{tbsp}} \)[/tex]
- [tex]\( \frac{24\, \text{eggs}}{4\, \text{tbsp}} \)[/tex]
- [tex]\( \frac{9\, \text{eggs}}{1.5\, \text{tbsp}} \)[/tex]

These are the ratios that maintain the same proportional relationship as the original recipe requirement!