Example:
The hardback edition of a book costs $20.00 more than
the paperback edition.
Step 1:
Assign a variable to the unknown number or amount.You
know that the hardcover edition costs $20 more than the
paperback, and the price of the paperback can be any
value, represent the price of the paperback with a
variable, such as p.
Step 2:
Write an algebratic expression.
Since p reprsents the price of the paperback edition,
p + $20 is the algebraic expression that represents the
price of the hardcover edition.
Step 3:
Evaluate the algebraic expression.
You can evaluate the algebraic expression p + $20 by
assigning a value to the variable p. For example, if
p = $10.95, then you would evaluate +$20 as
$10.95 + $20, or $30.95. So, if the price of the
paperback editionis $10.95, then the price of the
hardcover edition edition is $30.95.
The hardback edition of a book costs $20.00 more than
the paperback edition.
Step 1:
Assign a variable to the unknown number or amount.You
know that the hardcover edition costs $20 more than the
paperback, and the price of the paperback can be any
value, represent the price of the paperback with a
variable, such as p.
Step 2:
Write an algebratic expression.
Since p reprsents the price of the paperback edition,
p + $20 is the algebraic expression that represents the
price of the hardcover edition.
Step 3:
Evaluate the algebraic expression.
You can evaluate the algebraic expression p + $20 by
assigning a value to the variable p. For example, if
p = $10.95, then you would evaluate +$20 as
$10.95 + $20, or $30.95. So, if the price of the
paperback editionis $10.95, then the price of the
hardcover edition edition is $30.95.