Writing and Solving Expressions

Front

What expression represents the number of empty seats on a plane with 100 seats if there are p passengers?

Back

100 - p

Front

Evaluate the expression a² - b² when a = 4 and b = 2.

Back

12

Front

If a Lyft driver earns $10/hour and works h hours per day, what expression represents her daily earnings after spending $25 on gas?

Back

10h - 25

Front

How many prizes are in each bag if Mr. Marcin has 92 prizes and splits them into b bags?

Back

92 ÷ b

Front

Evaluate the expression xy + y³ when x = 5 and y = 8.

Back

552

Front

What is the formula for calculating the total earnings of a worker after expenses?

Back

Total Earnings = (Hourly Rate × Hours Worked) - Expenses

Front

Define the term 'expression' in mathematics.

Back

An expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign and represents a value, while an equation states that two expressions are equal.

Front

How do you simplify the expression 3x + 5x?

Back

Combine like terms to get 8x.

Front

What is the process to evaluate an expression with given values for its variables?

Back

Substitute the given values into the expression and perform the arithmetic operations.