Proportions Ratio Tables Unit Rate

Which scenario does not represent a proportional relationship

• You can fit 25 desks per room

• Ms. Perry pays $1.50 per cookie

• Ms. Harber rents a scooter for $15.00 and $2.00 per hour

• Apples are on sale for 50 cents an apple

Each pack of paper has 125 sheets. Which teacher had the better buy?

• Ms. Perry bought 3 packs for $14.00

• Ms. Demarino bought 4 packs for $20.00

• Ms. Gombos bought 8 packs for $27.00

• Ms. Palermo bought 10 packs for $35.00

The constant of proportionality can be found by finding the __________  _____________.

• proportion answer

• unit rate

• rational number

• ratio rate

Is the given table a proportional relationship? If so, what is the constant of proportionality?

• Yes; X=1/3

• No

• Yes; X=3

• Yes; X=5

What is the constant of proportionality for the table above?

• X=4

• X=3

• X=1/2

• No C.O.P

Which of the tables above represents a proportional relationship?

• a & c

• a, b & c

• a, c & d

• all of them

Write an equation for the relationship between x and y.

• y = 5x

• y = 1/5x

• y = 5

• y = 1/5

Write an equation for the relationship between x and y.

• y = 4x

• y = 1/4x

• y = 4

• y = 1/4

Write an equation for the relationship between x and y.

• y = 2x

• y = 1/2x

• y = 2

• y = 1/2

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

• x = 4.25 + y

• x = 4.25y

• y = 4.25 + x

• y = 4.25x