WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 yards) 5 Minutes Remain

WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 yards) 4

WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 meters) 3

WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 yards) 2

WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 yards) 1

WARM UP CONVERTING UNITS: Convert the units. Round the Result to the nearest tenth eggs to dozens of eggs 2.2 years to months days to weeks minutes to hours yards to feet (1 yard = 3 feet) meters to kilometers (1 km = 1000 yards) 0

3.9 Percents GOAL: Solve Percent Problems KEY WORDS: Percent Base Number

3.9 Percents A percent is a ratio that compares a number to 100. You can write a percent as a fraction, as a decimal, or as a number followed by a percent symbol (%). For example, you can write 40 percent as 0.40, or 40%

3.9 Percents VERBAL MODEL Number compared to base = percent base number a = number compared to base Percent = p% = b = base number ALGEBRAIC MODEL a = b p 100 p

3.9 Percents EXAMPLE 1: Number compared to Base is Unknown What is 30% of 70 feet? a = ( ) (70) a = 21 a = b p

3.9 Percents EXAMPLE 2: Base Number is Unknown Fourteen dollars is 25% of what amount of money? Number compared to base = 14 Percent = 25% = = 14 = b (4)14 = bb = 56 a = b p

3.9 Percents EXAMPLE 3: Percent is Unknown 135 is what percent of 27? Number compared to base = 135 Base number = = (27) 500 = p 135 is 500% of = p 135 is 500% of 27. a = b p 100 p = p = p 100 YOU ARE CERTIFIED!

3.9 Percents YOUR TURN Page 186 #s 3-10 and