Hans needs to memorize words on a vocabulary list for latin class. he has memorized 20 of the words which is 1/4 of the list. how many words are in the list?

 There are "80" words in the list. 

Explanation:

(1/4) x = 20 ;  solve for "x" ;

Multiply each side of the equation by "4" ; to isolate "x" on ONE SIDE of the equation; and to solve for "x"; 

  >  4 * { (1/4) x } = 20 *4 ; 

                   ===>  x = 80 .

There are "80" words in the list. 

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