How to Write a Proportion | 7.RP.A.2

The video tutorial teaches how to write and use proportions to solve real-world problems. It begins with an introduction to proportions, followed by a problem statement involving the cost of juice cans. The tutorial explains how to form equivalent ratios and use them to find unknown values. The solution to the problem is demonstrated, and the video concludes with encouragement to continue mastering math.

What is the main objective of the lesson involving the babysitter and juice cans?

• To calculate the total cost of 10 cans of juice.

• To find the cost of 4 cans of juice using a proportion.

• To compare the cost of juice with other beverages.

• To determine the price of a single can of juice.

How do we set up a proportion in this scenario?

• By comparing the total cost to the number of cans.

• By comparing the number of cans to the cost per can.

• By comparing the number of cans to the total cost.

• By comparing the cost per can to the total cost.

What is the first step in forming a proportion with the given data?

• Identify the total cost of all cans.

• Determine the cost of one can.

• Set up a ratio of cans to cost.

• Calculate the difference in cost between two quantities.

Which of the following proportions correctly represents the problem?

• 6/4.50 = 4/c

• 4/6 = c/4.50

• 6/4 = 4.50/c

• 6/4.50 = 4/c

What is the purpose of writing a proportion in this context?

• To compare the cost of different brands of juice.

• To determine the cost of a single can.

• To find the total number of cans bought.

• To solve for the unknown cost of 4 cans.