68.1k views
0 votes
Each number in a list of numbers can be found using the expression 6 − 2/3 (n − 1), where n is a positive integer that gives the position of the number in the list. What is the thirteenth number in the list?

A. −8
B. −2
C. 8
D. 13

User Olefrank
by
7.7k points

1 Answer

6 votes

Answer:

B. −2

Explanation:

You want the value of the expression 6 -2/3(n -1) for n = 13.

Evaluation

Put 13 where n is in the expression and do the arithmetic.

= 6 -2/3(13 -1) . . . . . . substitute for n

= 6 -2/3(12) . . . . . . evaluate the parentheses

= 6 -8 . . . . . . . . . evaluate the product

= -2 . . . . . . . . evaluate the difference

The 13th number in the list is -2.

User Shaneika
by
8.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories