Calculate the scale factor of abc to uvw. enter answer as a whole number or as a fraction in lowest term

since 15/3=5

25/5=5

20/4 = 5

 the scale factor is 5

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.