Final answer:
To find the RCF, divide the desired servings by the original servings. In this case, the RCF is 1.5.
Step-by-step explanation:
To find the RCF, you need to calculate the ratio of the desired servings to the original servings. In this case, you want to serve 15 servings, and the recipe yields 10 servings, so the ratio is 15/10 = 1.5. The RCF, or Recipe Conversion Factor, is the multiplier that you apply to the ingredients in the recipe to adjust for the change in servings.
To find the RCF, you divide the desired servings by the original servings. In this case, 15 servings divided by 10 servings equals 1.5. So, the RCF is 1.5.
To use the RCF, you multiply each ingredient in the recipe by the RCF to adjust the measurements. For example, if the recipe calls for 1 cup of flour, you would multiply it by 1.5 to get 1.5 cups of flour for 15 servings.