Writing Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables and constants.

Front

Define variable in the context of equations.

Back

A variable is a symbol, often represented by a letter, that stands for an unknown value in an equation.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the purpose of using parentheses in equations?

Back

Parentheses indicate which operations should be performed first in an equation, following the order of operations.

Front

What is a linear equation?

Back

A linear equation is an equation of the first degree, meaning it has no exponents greater than one, and it graphs as a straight line.

Front

How do you represent a total cost in an equation?

Back

Total cost can be represented as the sum of the products of the quantities of items and their respective prices.

Front

What is the equation to find the total cost of 5 pairs of shoes at $19 each and 4 blouses at $16.50 each?

Back

t = 5(19) + 4(16.50) where t is the total cost.

Front

How do you express a weekly allowance in an equation if half is spent and a certain amount is earned?

Back

If n is the weekly allowance, the equation can be expressed as n/2 + earned amount = remaining amount.

Front

What is the equation for finding the number of students in each bus if 331 students traveled with 6 buses and 7 in cars?

Back

6n + 7 = 331 where n is the number of students in each bus.

Front

How do you set up an equation for total expenses involving multiple items?

Back

Total expenses can be set up as the sum of the costs of each item, e.g., total = cost of item1 + cost of item2.