Ratios Unit Rates Graphs and Tables Study Guide

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

Mr. Wright has 7 boys and 9 girls. What is the ratio of girls to boys?

• 7 to 9

• 9 to 7

Your brother has a bag of marbles.  He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles.  What is the ratio of blue marbles to red marbles?

• 3 to 8

• 3 : 7

• 2 to 7

• 2 : 3

Which rate is equivalent to $9 per hour?

• $27 in 3 hours

• $28 in 4 hours

• $33 in 3 hours

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked

  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

What is the unit rate for this graph?

• 100

• 25

• 50

• 200

Mr. Johnson wants to purchase notebooks for his classroom. Which package would Mr. Johnson pay the least per notebook?

• Package 1

• Package 2

• Package 3

• Package 4

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When guests come, she makes 96 fluid ounces of coffee. How many grams of coffee beans does Diana use when she has visitors?

Mathematical Equivalence

ON

What is the unit rate for the rain fall?

• 2 cm per hour

• 1 cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Kelly has 10 apps on her iPad.
5 are school apps, 2 are music apps, and 3 are games.
What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3