Comparing Rates and Costs

This lesson focuses on comparing speeds and prices. It begins with understanding expressions and their values relative to one another. The lesson then moves to comparing speeds using treadmill workout data, followed by an analysis of finding the best deal on canned beans through unit pricing. The session concludes with a summary and homework exercises to reinforce the concepts learned.

What is the value of an expression if the two numbers used as quotients are very close to each other?

• Closer to zero

• Closer to one

• Closer to two

• Closer to three

If Tyler runs 4,200 meters in 30 minutes, how many meters does he run per minute?

• 120 meters

• 150 meters

• 130 meters

• 140 meters

Who runs faster, Kieran or May, and what is their speed in meters per minute?

• May at 210 meters per minute

• Kieran at 210 meters per minute

• May at 140 meters per minute

• Kieran at 140 meters per minute

Which store offers the best deal on baked beans if one store sells 8 cans for $6?

• Store with 1 can for 80 cents

• Store with 10 cans for $10

• Store with 2 cans for $3

• Store with 8 cans for $6

How much does one ounce cost if a store sells 28-ounce cans for $1.40?

• 15 cents

• 20 cents

• 10 cents

• 5 cents

What is the effective way to compare rates in different situations?

• Using addition

• Finding ratios

• Using subtraction

• Finding averages

If May travels 15 meters in 6 seconds, what is her speed in meters per second?

• 2.2 meters per second

• 2.0 meters per second

• 3.0 meters per second

• 2.5 meters per second

Which store offers the best deal on juice if one store sells 4 cans for $2.48?

• Store with 5 cans for $3

• Store with 1 can for 62 cents

• Store with 4 cans for $2.48

• Store with 1 can for 59 cents

How much does a 450 square foot apartment cost per square foot if the total cost is $540,000?

• $1,200

• $1,800

• $1,000

• $1,500

How many liters are approximately in a gallon?

• 5 liters

• 3 liters

• 2 liters

• 4 liters