Final answer:
Scott has memorized 15 words which is 1/3 of his Korean vocabulary list. By setting up a proportion and solving it, we find that there are 45 words in total on the list.
Step-by-step explanation:
The question asks how many words are on a vocabulary list if Scott has memorized 15 words, which represents 1/3 of the total list.
To find the total number of words on the list, we can set up a simple proportion where 15 words is to 1/3 as the total number of words (x) is to 1 (the whole list).
So, we have:
15 words / (1/3) = x words / 1
To solve for x, we multiply both sides by 3:
15 words × 3 = x words
Therefore, x = 45 words.
This means there are a total of 45 words on the vocabulary list.