Unit 2 Percent Review

​Look at every assignment in Unit 2.

Do you have any missing assignments?
Do you need to retake any quizzes?

If the answer is "yes" to either question, then do it!

​Slides 1, 2, and 3 should be complete.

We are doing slide 3, together, in class on TUESDAY (so you might have to check this later).

part = percent/100 x whole

​Equation

​Part = percent/100 x whole

Be sure to change the percent to a decimal (by dividing by 100).

0.38 x 150 =
0.08 x 52 = (be sure you have 0.08 and not 0.8--which is 80%, not 8%)
0.35 x 160 =

whole = part / (percent/100)

Turn the percent into a decimal first, by dividing by 100.

​Equation

​Whole = part / (percent/100)

Be sure to change the percent to a decimal (by dividing by 100) first...before dividing the part by the percent.

32 / 0.40=
120/ 0.75=
4/ 0.40 =

Are you missing the part, the whole or the percent?

1. Find the percentage. Add up the known percents (40+20+15 = 75). Since circle graphs total 100%, then you can subtract 75% to get the remaining percent.

2. Find the part. 20% of 150, which is 0.20 x 150=

3. Find the whole. 50 is 20%, which is 50/0.20 =