Agym is in the process of purchasing new 5-pound and 8-pound dumbbells for their aerobics room. each 5-pound dumbbell costs $8 and each 8-pound dumbbell costs $12. the entire shipment of dumbbells costs $432 and weighs 282 pounds. which equations can be used to find the number of 5-pound dumbbells, x, and the number of 8-pound dumbbells, y, in the shipment?

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.

is there any photos or whatever?