Convert the following ratios. use proper scale factors.
a) 15.5miles/3hours to feet/sec
b) 3.5yds to inches

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.

x

step-by-step explanation:

what is the original number? you forgot to add it.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x