Lesson 3.1: Analyze Percents of Numbers

Page 146 #1:

• percent is a ratio that compares quantity to a 100

• Percent is a ratio that compares two equal quantities.

• Percent is a number that is always greater than 100.

Page 146 #2:

• Grater than 100% -the value is greater than the original value; Less than 1% - the value is less than one one-hundredth of the original value.

• Greater than 100% - The value is less than the original value.

• Less than 1% - The value is greater than the original value.

Page 146 #3:

• No; Finding 25% of a number is the same as dividing that number by 25.

• Yes; Finding 25% of a number is the same as multiplying that number by 4.

• No; Finding 25% of a number is the same as multiplying that number by 1/4, not dividing it by 1/4.

Page 146 #4:

• 8 ounces

• 100 ounces

• 64 ounces

Page 146 # 5: a.

• 680.8

• 1,107.6

• 7.084

• 377.6

Page 146 # 5: b.

• 680.8

• 1,107.6

• 7.084

• 377.6

Page 146 # 5: c.

• 680.8

• 1,107.6

• 7.084

• 377.6

Page 146 # 5: d

• 680.8

• 1,107.6

• 7.084

• 377.6

Page 146 #6:

• =11.2%

• ≈11.2%

• 11.2

Page 147 #7:

• 58 left-handed players

• 48 left-handed players

• 48 right-handed players

• 58 right-handed players