40 is what percent of 50? Algebra Linear Equations Percent Equations 1 Answer Daniel Boyd Jun 24, 2016 #40/50xx100=80%# Explanation: #x# is the numerator = 40 #y# is the denominator = 50 #z# is the numerator as a percentage of the denominator = 80% The algebra: Divide #x# by #y# to get #z/100# #x/y=z/100# Multiply #z/100# by 100 to get #z# #z/100xx100=z# How it works: #40/50=80/100=0.8# #80/100xx100=0.8xx100=80# 40 is 80% of 50. 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 86443 views around the world You can reuse this answer Creative Commons License