A shirt and a pair of pants cost $455. If the shirt cost $95 more than the pants, calculate the cost of 3 shirts and 3 pairs of pants.​

$1365

Step-by-step explanation:

say S= shirt and P=pants

S+P=455

S= 95+P

95+P+P= 455

2P + 95 = 455

2P= 360

P= 180

S= 275

3(275) + 3(180)= x

x= 1365

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.