Write an algebraic expression to model the unknown number situation.

Question

the sum of five and a number

Complete each statement to explain how to model this situation.

Replace “a number” with
.
Replace “sum” with
.
Replace “five” with
.
The correct algebraic expression is

Answer 1

To model the situation described where the sum of five and a number is represented, we can define the components as follows:

1. Replace “a number” with x (this represents the unknown number).
2. Replace “sum” with + (indicating addition).
3. Replace “five” with 5 (the constant number).

Putting this together, the correct algebraic expression is:

5 + x.