Lesson 6-6 "Proportions and Percents"
Part 1 "All Percent Problems"
1. Read the part in the book !
2. Is / Of = % / 100
3. EX: What is 75% of 40 ? X/40 = 75/100
100X =
3,000 X = 30
EX: What % of 40 is 6 ? 6/40 = X/100
40X =
600 X = 15
EX: 9% of what number is 27 ? 27/X = 9/100
9X =
2700 X = 300
Part 2 "Percent of a number"
4. Change Percent to Decimal and Multiply !
5. EX: What is 75% of 40 ? (.75)(40) = 30 !
This page was last modified
09/14/07