Direct Proportion Review

If 4 ice creams cost £4.80, what is the cost of 1 ice creams?

• £1.20

• 1.2

• £1.2

• 120

Two slices of Dan’s Famous Pizza have 300

Calories. How many Calories would you expect to be in 6 slices of the same pizza?

• 30 calories

• 900 calories

• 1200 calories

• 460 calories

Here is a recipe for 30 biscuits. How many biscuits can I make with 150g of flour?

• 5

• 10

• 15

• 20

How much mince will I need to make this recipe for 15 people?

The value of y varies directly with x. Which equation represents the relationship between x and y if y = 14 when x = 6.

• y=20x

• y=84x

• y=7/3x

• y=3/7x

y varies directly with x. When y is 16, x is 32. Which equation represents this situation?

• y = 32x

• y = 16x

• y = 2x

• y = (1/2)x

Solve the proportion: 4/7 = 12/x

• x = 16

• x = 21

• x = 9

• x = 28

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26

• 3

• 58.5

• 2

What is the constant of variation, k (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

If y varies directly with x, and y = 8 when x = -4, what is x when y = -48?

• -96

• 24

• 96

• -24