Percentage and Proportional Reasoning

This lesson covers the use of tape diagrams to understand percentages. It includes examples of calculating percentages in various contexts, such as weights, money, and water consumption. The lesson also provides a summary and homework to reinforce the concepts learned.

What percentage of the whole is represented by three out of four segments in a tape diagram?

• 75%

• 60%

• 50%

• 80%

If a puppy's current weight is 9 lbs and this represents 20% of its adult weight, what is the adult weight?

• 50 lbs

• 60 lbs

• 45 lbs

• 30 lbs

How many times greater is a 90 lb dog compared to a 9 lb puppy?

• 12 times

• 10 times

• 8 times

• 5 times

If Noah has $5 and Elena has 40% of what Noah has, how much does Elena have?

• $4

• $1

• $3

• $2

Diego has 150% of the amount Noah has. If Noah has $5, how much does Diego have?

• $6.50

• $8

• $5

• $7.50

If Andre drank 1.5 liters of water, which is 50% of his total, how much water did he bring?

• 2 liters

• 3.5 liters

• 2.5 liters

• 3 liters

What is 30% of 50 lbs?

• 10 lbs

• 15 lbs

• 20 lbs

• 25 lbs

If a bakery makes 40 different flavors of muffins and 25% have chocolate, how many flavors have chocolate?

• 5

• 10

• 12

• 8

Jada spent 120% of her budget on a phone bill, which was $60. What was her original budget?

• $50

• $45

• $55

• $40

An athlete runs 8 miles in 50 minutes. How long will it take to run 9 miles at the same pace?

• 62.5 minutes

• 60 minutes

• 56.25 minutes

• 55 minutes