A dentist’s concave mirror produces an image of a patient’s tooth that is 12 mm tall…
MATHEMATICS · Single correct · AoPS · Mathematics · Ratios and Percents · Ratios and Percents
Problem
A dentist’s concave mirror produces an image of a patient’s tooth that is 12 mm tall when the actual tooth is 8 mm tall. Approximately what percent enlargement does the mirror provide?
(a) 150% enlargement
(b) 33% enlargement
(c) 50% enlargement
(d) 67% enlargement