Ratios and Proportionality

The model below shows the ratio of gray to white squares. Which of the following is not an equivalent ratio of gray squares to total squares?

• 9/24

• 21/60

• 15/40

• 27/72

Edgar pays $67.86 for 7.8 pounds of fertilizer. What is the price per pound of fertilizer?

• $6.98

• $5.65

• $8.70

• $10.26

Diana uses 30 grams of coffee beans to make 48 fluid ounces of coffee. When company comes she makes 96 fluid ounces of coffee. How many grams of coffee beans does Diana use when company comes?

• 160

• 60

• 98.2

• 14.4

Which of the following tables best represents the ratio of minutes it takes to fill a bathtub to the total number of gallons?

• 
• 
• 
• 

Lucy spends $1.75 on a cup of coffee each day. Fill in the following table to represent a proportional relationship.

b

d

e

a

$1.75

$12.25

$3.50

$10.50

$8.75

$5.25

$3.00

$7.00

An elevator moves at a constant rate of 18 feet in 3 seconds. A second elevator moves at a constant rate of 40 feet in 5 seconds.

The situation ​ ​ (a)   a proportional relationship because ​ (b)  

• does not represent

• the ratios are different

• represents

• the ratios are equivalent

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

Jameson pays $39.90 for 3.9 pounds of almonds. What is the price per pound of almonds?

• 10

• 10.5

• 11

• 11.5

Isabella decides to sell handmade stationery. She decides to sell 2 cards for $9. Which table below shows the values of c, the number of cards Isabella sells, and d, the number of dollars she charges?

• 
• 
• 
• 

The model above shows gray and white rectangles. Which of the following is NOT an equivalent ratio of gray squares to total squares?

• 9/24

• 21/60

• 15/40

• 27/72