Problema Solution
you earned a 90% on a science test. you awnsered 18 questions correctly. how many questions were onj the test
Answer provided by our tutors
let 'x' represent the total number of questions on the text
0.90x = 18
by solving we find:
x = 20 questions
click here to see the step by step solution of the equation:
there were 20 questions on the test.