Proportional Relationships Word Problems

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

On last week’s maths test Carol had 21 correct out of 25 problems. What percent grade did she receive?

• 42

• 80

• 84

• 92

A fence post that is 2 meters tall casts a shadow 5 meters long. At the same time a tree casts a shadow 108 meters. How tall is the tree?

• 33.2 meters

• 332 meters

• 43.2 meters

• 432 meters

Solve.

• 3

• 15

• 20

• 10

What qualities must a graph have in order for it to be proportional? (Select ALL that apply)

• Must cross through the Origin, point (0,0)

• Must always be positive

• Must be a line

• Must be a straight line; has to be linear

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Write an equation for this relationship.

• y=1/5x

• y=1/2x

• y=2x

• y=5x

Which statement best describes the relationship between x and y in the table?

• Proportional

• Not Proportional

Josh bought a pizza with eight slices of pizza for $12. What is the cost of a slice of pizza?

• $12

• $1.50

• $3

• $1