Rates and Ratios

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

Simplify the ratio of
35 : 14

• 5 : 2
• 2 : 5
• 3 : 1
• 35: 14

There are 4 triangles, 12 squares, and 6 circles.  What is the ratio of triangles to squares? Simplify.

• 12 : 4
• 2 to 6
• 1 : 3

There are 10 dimes, 8 quarters, and 5 nickels?  What is the ratio of quarters to dimes?

• 10 to 8
• 8 : 10
• 4 : 5
• 5 to 4

You have 29 books on your shelf. You have read 18 of those books.
What is the ratio of books not read to all of the books on your shelf?

• 18 to 29
• 11 : 18
• 11 : 29

Which rate is equivalent to 15 miles per hour?

• 30 miles in 3 hours
• 30 miles in 2 hours
• 30 miles in 5 hours

Which rate is equivalent to 6 miles per gallon?

• 30 miles to 6 gallons
• 24 miles to 8 gallons
• 18 miles to 3 gallons

Which rate is equivalent to $9 per hour?

• $27 in 3 hours
• $28 in 4 hours
• $33 in 3 hours

The ratio of red marbles to blue marbles in a bag is 2 to 3.  Which of the following could be the number of red and blue marbles in the bag?

• 4 red marbles and 5 blue marbles
• 4 red marbles and 6 blue marbles
• 6 red marbles and 8 blue marbles
• 6 red marbles and 4 blue marbles