A wire 90 cm long is cut into two pieces. One piece is twice as long as the other piece. How
long is the shorter piece of wire?

Step-by-step explanation:

If one price is 2 times the other one, that means it's equal to 2 of those parts. Let's decide our total wire by three to account for the larger part.

Now we know the shorter piece is 30 cm. To find the longer piece, multiply the shorter piece by 2.

Recap:

Shorter Piece: 30 cm

Longer Piece: 60 cm

That's all there is to it! hope this helps.

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.

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.