Question

Rule 1: Multiply by 2, then add one-third starting from 1. Rule 2: Add one half, then multiply by 4 starting from 0. What is the fifth ordered pair using the two sequences? SHOW YOUR WORK

A. (5, 10)
B. (10 1/3, 42)
C. (21, 170)
D. (2 1/3, 2)

Answer 1

the answer is (10 1/3, 18)

Explanation:

rule 1: 2n+1/3

from 1 the fifth is:2*5+1/3=10 1/3

rule 2:（n+1/2） *4

from 0 the fifth is:（4+1/2） *4 =18

the answer is (10 1/3, 18)

there is no right answer.