Proportional Relationships 7th Grade MATH

What is the constant of proportionality for the relationship between batches of cookies and cups of flour?

• 1/2

• 2

• 1

• there is no constant of proportionality because the graph does not represent a proportional relationship
  
  

What is the constant of proportionality

• 15

• 5

• 75

• 1/15

What Is The Unit Rate

• 1/3 of a glass of lemonade

• 12 lemons per glass

• 3 lemons per glass

• 8 lemons per glass

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs. Write and solve a proportion to find the number c of cats.

• c=15

• c=18

• c=21

• c=16

Pizzas are $10 each plus a $2 delivery fee. Is the cost proportional to the number of pizzas ordered?

• Yes, the unit rate is $10/pizza

• Yes, the unit rate is $12/pizza

• No, the unit rate is not constant

• No, because Little Caesars is $5/pizza

A brownie recipe requires 2/3 cup of sugar for 1/3 batch of brownies. How much sugar is need for 1 batch of brownies

• 1/2 cup

• 1 cup

• 1 & 1/3 cups

• 2 cups

Can the following situation be represented using the equation y=kx?

• yes

• no

Find the unit rate from the graph.

• 3ft/0.5min

• 3ft/min

• 6ft/min

• 1ft/6min