Multiple Choice Examples: Expressions & Equations

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is less than, greater than, less than or equal to, or greater than or equal to the other.

Front

How do you represent a situation where a painter charges $25 per hour plus $50 to paint a house?

Back

The total cost can be represented as an equation: Total Cost = 25x + 50, where x is the number of hours worked.

Front

What does the inequality 25x + 50 < 725 represent in the context of the painter's charges?

Back

It represents that the total cost of painting the house must be less than $725.

Front

Back

You can estimate by rounding the fractions to simpler numbers and then multiplying them.

Front

What is the maximum budget a club can spend if it plans to spend no more than 85% of $1200?

Back

The maximum budget is 0.85 * 1200 = $1020.

Front

How do you calculate the total cost of a helicopter including sales tax?

Back

Total Cost = Price of Helicopter + (Sales Tax Rate * Price of Helicopter). For a helicopter priced at $110.99 with a 6% tax, it would be: Total Cost = 110.99 + (0.06 * 110.99).

Front

What is the equation to find the number of boys (x) in a survey where 20% prefer tap dance?

Back

The equation is 0.2(x + 25) = 9, where 25 is the number of girls.

Front

How do you find the total earnings of Mary who charges a flat fee and a per hour rate?

Back

Total Earnings = Flat Fee + (Hourly Rate * Number of Hours). For Mary, it is 5 + 2.5 * hours.

Front

What is the solution to the equation 25x + 50 < 725?

Back

To solve for x, subtract 50 from both sides: 25x < 675, then divide by 25: x < 27.

Front

What does it mean if 20% of students prefer tap dance?

Back

It means that out of all students surveyed, 20% expressed a preference for tap dance over other options.