Writing Equations and Inequalities from Word Problems

What is the main difference between writing expressions and writing equations or inequalities?

• Equations and inequalities include an x and an equal sign or inequality symbol.

• Expressions always include an equal sign.

• Expressions do not include any variables.

• Equations and inequalities are only used in advanced math.

Which keyword indicates multiplication in an equation?

• Difference

• Total

• Sum

• Per

What does the keyword 'total' usually indicate in an equation?

• Division

• Multiplication

• Equality

• Subtraction

Which of the following is a keyword for 'less than'?

• Exceeds

• Maximum

• Below

• At least

What does 'no more than' indicate in an inequality?

• Less than or equal to

• Greater than

• Greater than or equal to

• Less than

What is the first step in writing an equation or inequality from a word problem?

• Circle the numbers

• Underline the keywords

• Cross out extra information

• Write the equation

What is the final step in writing an equation or inequality from a word problem?

• Write the equation or inequality

• Cross out extra information

• Circle the numbers

• Underline the keywords

In the example with Sergio, what does the '3' represent in the equation 2 + 3x ≤ 14?

• The cost of one bottle of water

• The number of hot dogs

• The cost of each hot dog

• The total amount spent

In the example with Jeremiah, what does the '25' represent in the equation 25 + 5y = 70?

• The one-time membership fee

• The total amount charged

• The number of years

• The cost per year

What does the 'y' represent in the equation 25 + 5y = 70?

• The number of years

• The total amount charged

• The one-time membership fee

• The cost per year