Math Proportions

What does the point on the graph mean?

• Each pizza costs $20

• Each pizza costs $10

• The pizzeria makes a profit of $1 per pizza

• The pizzeria makes a profit of $10 per pizza

Which of these proportional equations would you use to find the missing pieces of a percent problem, using the words "Part and Whole"?

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• 
• 
• 

Which of these proportional equations would you use to find the missing pieces of a percent problem, using the words "OF and IS"?

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• 
• 
• 

What is 30% of 80?

• 30

• 24

• 2.4

• 56

Everyone at Ethan's school wore either brown or yellow for school spirit day. 74 out of the 100 students at the school wore brown. What percentage of the students wore brown?

• 26%

• 26

• 74

• 74%

There are 35 boys out for football. This is about 5% of the total enrollment. How many total kids are in the school?

• 30

• 350

• 700

• 1235

Norshaura has a recipe that requires 3/4 teaspoons of butter for every 2 cups of milk. If Norshaura uses 3 cups of milk, how many teaspoons of butter are needed?

• 1 1/8 teaspoons

• 1/2 teaspoons

• 1 3/8 teaspoons

• 7/8 teaspoons

The price of peaches at Ethan's supermarket can be determined by the equation p=0.28n, where P is the price and n is the number of pounds of peaches. What is the constant of proportionality?

• $0.56/2 pounds

• $1/pound

• $0.28/pound

• $1.50/3 pounds

• There is no constant of proportionality because the price of peaches is not directly proportional to the weight of the peaches.

Which table shows a proportional relationship between x and y?

• A

• B

• C

• D

Mr. Tubbs baked chocolate chip cookies for a bake sale. The graph shows the relationship between the number of cookie batches baked and the number of cups of chocolate chips used.

What does the constant of proportionality represent?

• The total number of cookie batches baked

• The total number of cups of chocolate chips used

• The number of cookie batches per cup of chocolate chips used

• The number of cups of chocolate chips used per cookie batch