178k views
4 votes
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?​

User Fedotoves
by
6.9k points

2 Answers

4 votes

Answer:

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.

User Zakharov Roman
by
6.8k points
5 votes

Answer:

No, the student is not correct. The correct expression is 9(n+13).

Explanation:

"9 times the sum of a number and 13" means you must multiply 9 by the sum, not just by the number. 9n + 13 would be "the sum of 9 times a number and 13." Slightly different wording.

User Daniel Cassidy
by
7.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.