Algebra: Write Expressions

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations but no variables.

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes numbers, variables, and operations.

Front

What is the difference between a numerical expression and an algebraic expression?

Back

An algebraic expression has variables and a numerical expression does not.

Front

Write an algebraic expression for the number of eggs in d dozen if there are 12 eggs in a dozen.

Back

12d

Front

Write an algebraic expression for the cost of entering a state park with a $6.00 entry fee and $7.50 per night of camping for n nights.

Back

6 + 7.50n

Front

What does the variable 'd' represent in the expression 12d?

Back

The variable 'd' represents the number of dozens.

Front

What does the variable 'n' represent in the expression 6 + 7.50n?

Back

The variable 'n' represents the number of nights camping.

Front

What is the value of the expression 5x + 3 when x = 2?

Back

5(2) + 3 = 10 + 3 = 13.

Front

How do you simplify the expression 3a + 4a?

Back

3a + 4a = 7a.

Front

What is the coefficient in the expression 7x + 2?

Back

The coefficient is 7.