Understanding Cost and Quantity Relationships

The video tutorial explains how to determine the number of chip packages you can buy for $9, given that one package costs $3. It involves setting up a mathematical equation, defining variables, and using cross-multiplication to solve for the unknown variable, X. The solution shows that you can buy three packages of chips for $9.

If one package of chips costs $3, how many packages can you buy with $9?

• 1 package

• 4 packages

• 2 packages

• 3 packages

Tags

CCSS.6.RP.A.3B

What is the first step in setting up the problem to find out how many packages can be bought?

• Calculate the total cost

• Identify the cost of one package

• Set up a ratio with a variable

• Multiply the cost by the number of packages

Tags

CCSS.HSF.LE.B.5

In the problem setup, what does the variable X represent?

• The total amount of money

• The number of packages that can be bought

• The price of multiple packages

• The cost of one package

Tags

CCSS.6.EE.B.7

What mathematical operation is used to solve for the unknown variable in this problem?

• Cross-multiplication

• Addition

• Subtraction

• Division

Tags

CCSS.6.EE.B.7

After cross-multiplying, what is the next step to find the value of X?

• Subtract the smaller number from the larger one

• Multiply the numbers

• Divide each side by the cost of one package

• Add the numbers

Tags

CCSS.6.EE.B.7