Eight out of 10 dentists prefer Crest toothpaste. What is the ratio of dentists who do not prefer Crest to those who do?
\(\boxed{1:4}\) is the final answer.
Step 1 :The problem states that 8 out of 10 dentists prefer Crest toothpaste. This implies that 2 out of 10 dentists do not prefer Crest toothpaste.
Step 2 :We are asked to find the ratio of dentists who do not prefer Crest toothpaste to those who do. This is equivalent to the ratio of 2 to 8.
Step 3 :We simplify the ratio 2:8 to 1:4.
Step 4 :\(\boxed{1:4}\) is the final answer.