Recipe uses ½ c butter, 4 tablespoons kernels, and 1 tsp salt. If you use 10 tbs kernels, how much butter will you need? step-by-step

Answer 1

To determine how much butter you need when using 10 tablespoons of kernels, we can follow these steps:

1. Identify the original ratios from the recipe:

   • The recipe calls for ½ cup of butter and 4 tablespoons of kernels.
   • First, let's convert ½ cup of butter into tablespoons because we are using tablespoons for kernels.
   • Since 1 cup = 16 tablespoons, then: \[ \frac{1}{2} \text{ cup} = \frac{16}{2} = 8 \text{ tablespoons of butter} \]

2. Establish the ratio of butter to kernels from the original recipe:

   • The original recipe uses 8 tablespoons of butter for 4 tablespoons of kernels.
   • This gives us a ratio of: \[ \frac{8 \text{ tablespoons of butter}}{4 \text{ tablespoons of kernels}} = 2 \text{ tablespoons of butter per tablespoon of kernels} \]

3. Calculate the amount of butter needed for 10 tablespoons of kernels:

   • Since the ratio is 2 tablespoons of butter for every 1 tablespoon of kernels, we can calculate the amount of butter needed for 10 tablespoons of kernels: \[ \text{Butter needed} = 2 \text{ tablespoons of butter} \times 10 \text{ tablespoons of kernels} = 20 \text{ tablespoons of butter} \]

4. Convert 20 tablespoons of butter back to cups if necessary:

   • Since we know that 1 cup = 16 tablespoons, we can convert to cups: \[ 20 \text{ tablespoons} \div 16 \text{ tablespoons per cup} = 1.25 \text{ cups of butter} \]

Therefore, if you use 10 tablespoons of kernels, you will need 20 tablespoons of butter, which is equivalent to 1.25 cups of butter.