80% of what number is 12? Algebra Linear Equations Percent Equations 1 Answer Mr. X. Apr 18, 2018 The answer is #15#. Explanation: #12=\frac{80}{100}x# #\implies 12=\frac{4}{5}x# #\implies x=12/(4/5)=(12*5)/4=60/4=15# Answer link Related questions Jimmy made a #"75%# on a test worth #46# points. How many points did he get correct? How do you use proportions to solve percent equations? How do you translate percent problems into an equation? What number is 32% of 600? What number is #3/4#% of 16? 8 is 20% of what number? 99 is 180% of what number? What percent of 7.2 is 45? What percent of 150 is 5? What is 2% of 92? See all questions in Percent Equations Impact of this question 22746 views around the world You can reuse this answer Creative Commons License