Proportions and word problems set it up and solve

The video tutorial explains how to solve a problem involving the purchase of tangerines at different costs. It introduces the concept of setting up a ratio to compare the amount of money available to the number of tangerines that can be bought. The tutorial demonstrates solving the problem using cross multiplication and calculating the result to find out how many tangerines can be purchased for a given amount of money.

If 16 tangerines cost $11.20, how much does one tangerine cost?

• $0.90

• $1.00

• $0.80

• $0.70

What is the first step in setting up a proportion to solve the problem?

• Identify the total cost of tangerines

• Set up a ratio of cost to number of tangerines

• Determine the number of tangerines you want to buy

• Calculate the cost per tangerine

What mathematical method is used to solve the proportion in this problem?

• Division

• Addition

• Cross multiplication

• Subtraction

After setting up the proportion, what is the next step to find the number of tangerines you can buy for $1.40?

• Multiply both sides by 16

• Divide both sides by $11.20

• Subtract $1.40 from both sides

• Add $1.40 to both sides

How many tangerines can you buy for $1.40?

• 1

• 4

• 2

• 3