Question

Debra needs to memorize words on a vocabulary list for Spanish class. She has memorized 30 of the words, which is two-thirds of the list. How many words are on the list?

Answer 1

there are 45 words on the list

Step-by-step explanation:

let the total words on the list = y

Debra memorised 30 = 2/3 of the total words on the list

2/3 × y = amount of words Debra memorised

2/3 × y = 30

2y/3 = 30

cross multiply:

2y = 3(30)

2y = 90

divide both sides by 2:

2y/2 = 90/2

y = 45

Hence, there are 45 words on the list