If Orlando missed 5 out of 40 questions on the test, what percent of the questions did he get right?

1 Answer
Nov 1, 2016

Answer:

#color(green)(87.5%)#

Explanation:

Orlando got #40-5=35# out of #40# right.

That is he got #35/40# right.

As a percentage:
#color(white)("XXX")35/40=35/cancel(40)_2xxcancel(100)^5/color(red)(100)#

#color(white)("XXXXX")=(175/2)/color(red)(100)#

#color(white)("XXXXX")=87.5/color(red)(100)#

#color(white)("XXXXX")=87.5 "per 100"#

#color(white)("XXXXX")=87.5%# (since "per cent" means "per humdred")