Exploring Ratios and Rates in 7th Grade Math

What is a ratio?

• A comparison of two or more quantities

• A comparison of two quantities with different units

• A mathematical operation

• A fraction with a denominator of one

Which of the following is NOT a way to write a ratio?

• Using the word 'to'

• Using a colon

• Using a percentage

• Using a fraction

What does a rate compare?

• Two whole numbers

• Two fractions

• Two quantities with different units

• Two quantities with the same units

Which of the following is an example of a rate?

• 5 boys to 8 girls

• 4 apples to 6 oranges

• 120 beats every 2 minutes

• 3 dogs to 5 cats

What is a unit rate?

• A fraction with a numerator of one

• A comparison of two quantities with the same units

• A mathematical operation

• A rate with a denominator of one

How do you find the unit rate of 120 beats every 2 minutes?

• Multiply 120 by 2

• Divide 120 by 2

• Add 120 and 2

• Subtract 2 from 120

If Adrian biked 24 miles in 4 hours, how many miles did she bike in one hour?

• 4 miles

• 6 miles

• 8 miles

• 12 miles

How long does it take Ali to paint one face if she paints 4 faces in 40 minutes?

• 5 minutes

• 8 minutes

• 10 minutes

• 12 minutes

What is the unit price per scone if 3 scones cost $9.75?

• $3.75

• $3.25

• $3.00

• $2.25

How long would it take Miss Graves to grade 8 math tests if she grades 3 tests in 36 minutes?

• 108 minutes

• 96 minutes

• 84 minutes

• 72 minutes