Understanding Equivalent Ratios

What is a unit rate?

• A rate with a numerator of one

• A rate with a denominator of zero

• A rate with a denominator of one

• A rate with equal numerator and denominator

How can you determine if two ratios are equivalent?

• By subtracting their denominators

• By comparing their unit rates

• By adding their numerators

• By multiplying their numerators

If you have 20 miles in 5 hours, what is the unit rate?

• 4 miles per hour

• 5 miles per hour

• 6 miles per hour

• 3 miles per hour

Are the rates of 3 t-shirts for $21 and 5 t-shirts for $35 equivalent?

• No, because the total cost is different

• No, because the unit rates are different

• Yes, because both have a unit rate of $5 per t-shirt

• Yes, because both have a unit rate of $7 per t-shirt

What is the unit rate for Felicia's reading of 60 pages in 3 days?

• 25 pages per day

• 30 pages per day

• 15 pages per day

• 20 pages per day

Are the bracelet-making rates of Marsha and Jen equivalent?

• No, because Marsha makes 3 bracelets per friend and Jen makes 2

• Yes, because both make 3 bracelets per friend

• Yes, because both make 2 bracelets per friend

• No, because Marsha makes 2 bracelets per friend and Jen makes 3

How can you determine if two ratios are equivalent using fractions?

• By adding the numerators

• By subtracting the denominators

• By multiplying or dividing both terms by the same number

• By multiplying the numerators

Are the ratios of 3 free throws in 7 attempts and 9 free throws in 14 attempts equivalent?

• No, because the multipliers are the same

• Yes, because both are multiplied by 2

• Yes, because both are multiplied by 3

• No, because the multipliers are different

What operation is used to compare the cost of two DVD packages?

• Multiplication

• Division

• Subtraction

• Addition

Are the ratios of girls in Mrs. Jeff's student council and the Earth Day committee equivalent?

• Yes, because both are divided by 3

• No, because the division factors are the same

• Yes, because both are divided by 2

• No, because the division factors are different