Posted by MathDude on Monday, February 14, 2011 at 10:47pm.
Mrs.Chou placed 45 cookies on a plate, and 36 of the cookies were chocolate chip. What percent of the cookies on the plate were NOT chocolate chip?

Math  Ms. Sue, Monday, February 14, 2011 at 10:53pm
45  36 = 9
9/45 = 0.2 = 20%