Question

A student claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. Is the student correct? If not, what is the correct expression?

Answer 1

Explanation:

The student is not correct. He should use parentheses like this 9(n+13). Without the parentheses, it means nine times n plus 13, but should be the sum of n plus 13 multiplied by 9.

Answer 2

Sample Response: The student is not correct. He should use parentheses like this 9(n+13). Without the parentheses, it means nine times n plus 13, but should be the sum of n plus 13 multiplied by 9.

Explanation:

No, the student is not correct.

The student used 9 times a number.

The sum of a number and 13 is n + 13.

The student should use parentheses.

The correct expression is 9(n + 13).

whichever to your preference ;)