Rates and Unit Rates

What does the term 'ratio' mean?

• A ratio is a relationship between two quantities, showing how many times one value contains or is contained within the other.

• A ratio is a mathematical expression that represents the difference between two numbers.

• A ratio is a way to compare two or more quantities by division.

• A ratio is a fixed number that does not change regardless of the quantities involved.

What is a unit rate?

• A comparison of two different quantities where one is expressed as a single unit.

• A method to calculate the total cost of multiple items.

• A way to measure the speed of an object in motion.

• A technique used to convert currencies.

If a car travels 150 miles in 3 hours, what is the unit rate?

• 40 miles per hour

• 50 miles per hour

• 60 miles per hour

• 70 miles per hour

How do you convert a ratio to a fraction?

• Write the first quantity as the denominator and the second quantity as the numerator.

• Write the first quantity as the numerator and the second quantity as the denominator.

• Multiply both quantities by 10 and then write them as a fraction.

• Add both quantities together and write the sum as a fraction.

How can you express a ratio in simplest form?

• By multiplying both terms of the ratio by their least common multiple.

• By dividing both terms of the ratio by their greatest common divisor.

• By adding both terms of the ratio together.

• By subtracting the smaller term from the larger term.

How do you find the unit rate from a ratio?

• Divide the first quantity by the second quantity.

• Multiply the first quantity by the second quantity.

• Add the first quantity to the second quantity.

• Subtract the second quantity from the first quantity.

If 7 apples cost $4.55, how much does one apple cost?

• $0.45 per apple

• $0.55 per apple

• $0.65 per apple

• $0.75 per apple

What is the unit rate of 12 cookies for $3?

• $0.20 per cookie

• $0.25 per cookie

• $0.30 per cookie

• $0.15 per cookie

What is the ratio of boys to girls if there are 13 boys and 10 girls?

• 12 to 10

• 13 to 10

• 10 to 13

• 15 to 10

What is an example of a real-world unit rate?

• Liters per minute, which measures flow rate.

• Calories per serving, which measures nutritional content.

• Miles per hour, which measures speed.

• Hours per day, which measures time.