Writing Equations from Word Problems

Front

What is a variable in an equation?

Back

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

Front

What does it mean to write an equation from a word problem?

Back

It involves translating the words and relationships described in the problem into a mathematical equation.

Front

What is the equation for the sum of three consecutive numbers?

Back

x + (x + 1) + (x + 2) = sum

Front

How do you represent a relationship where one quantity is more than another?

Back

Use addition; for example, if x is the smaller quantity and y is the larger, then y = x + amount.

Front

What does 'perimeter' mean in geometry?

Back

The total distance around a two-dimensional shape, calculated by adding the lengths of all sides.

Front

How do you express the total of multiple items in an equation?

Back

Add the individual expressions for each item together and set it equal to the total.

Front

What is the significance of the equal sign in an equation?

Back

It indicates that the expressions on both sides have the same value.

Front

How can you represent a problem involving a triangle's sides?

Back

Use variables to represent each side and create an equation based on the relationships given.

Front

What does it mean for a number to be 'twice as long' as another?

Back

It means to multiply the other number by 2.

Front

How do you set up an equation for a problem involving a total amount?

Back

Identify the parts that make up the total and express their relationships mathematically.