2023 Winter Math Interim Review

The graph shows the cost C in dollars of w pounds of blueberries, a proportional relationship.

Select all the true statements.

• 1 pound of blueberries costs $2.75.

• 2.75 pounds of blueberries cost $1.

• 5 pounds of blueberries cost $15.50.

• The point (3,9) is on the graph of the proportional relationship.

• 12 pounds of blueberries cost $33.

A recipe for salad dressing calls for 3 tablespoons of oil for every 2 tablespoons of vinegar. The line represents the relationship between the amount of oil and the amount of vinegar needed to make salad dressing according to this recipe. The point (1,1.5) is on the line.

Find the equation that represents the proportional relationship between oil and vinegar.

A recipe for salad dressing calls for 3 tablespoons of oil for every 2 tablespoons of vinegar. The line represents the relationship between the amount of oil and the amount of vinegar needed to make salad dressing according to this recipe. The point (1,1.5) is on the line. What does the point (1,1.5) represent?

• 1.5 tablespoons of oil and 1 tablespoon of vinegar

• 1 tablespoon of oil and 2 tablespoons of vinegar

• 1 tablespoon of oil and 1.5 tablespoons of vinegar

• 1.5 tablespoons of oil and 2 tablespoons of vinegar

• 3 gallons

Find the circumference.

A wheel has a circumference of exactly 75.36 inches.

What is the radius, in inches, of the wheel? Use 3.14 as an approximation of pi. Put number only.

An ice cream factory keeps track of the use of ingredients each month. Find the constant of proportionality.