Question

Please help me! Will fan and medal! Follow instructions below.. posting attachment.
Write an expression in simplest form for the perimeter of each triangle.
Write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimiter of the smaller triangle.
Find the perimeter for each triangle when x=3.

Answer 1

Which Triangle @samsteronbroadway ?

Answer 2

Both. @HelpMeAlgebra

Answer 3

Oh i Just Saw That lol

Answer 4

Well, we know the perimeter is the sum of all sides right? So just add all of them up for each triangle :)

Answer 5

Yeah

Answer 6

@johnweldon1993 it's polynomial which confuses me with perimiters.. :/

Answer 7

btw @johnweldon1993 Can You Help Me On My Problem?

Answer 8

*perimeters

Answer 9

Okay so the larger triangle is

\[\large (5x - 4) + (4x + 2) + (7x + 7)\]

Answer 10

Ohhh that makes sense.. Okay so then it'd be... 16x+5

Answer 11

?

Answer 12

Now we just need to simplify that

Add each 'x' term...and add each constant

*because you cant add say 1 + 2x *

So we add

\[\large 5x + 4x + 7x - 4 + 2 + 7\]

Answer 13

Or yes 16x + 5 :)

Answer 14

okay so is that the perimeter of the bigger one?

Answer 15

Correct :)

Now the smaller?

Answer 16

(x+3)+(2x-5)+(x+7) is the next one which will simplify to.... hold on

Answer 17

4x+5?

Answer 18

Correct!

Answer 19

Okay :D now what?

Answer 20

And then for part C we just plug in 3 for each 'x'

Answer 21

?

Answer 22

Oh wait, we need the part B first lol

"Write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle"

Answer 23

Would we just do (16x+5)-(4x+5)?

Answer 24

Yes indeed...which will simplify as well

Answer 25

12x ?

Answer 26

Correct again

Answer 27

Yay:) So what do we do for c?? I'm slightly confused.

Answer 28

Well

"Find the perimeter for each triangle when x=3"

We know the perimeter of the larger is

\[\large (16x + 5)\]

When we make 'x' = 3...what does that equal?

Answer 29

So like 16 * 3 + 5?

Answer 30

Correct! :)

Answer 31

53?

Answer 32

and again correct! lol

Answer 33

Now we just need to do the same for the smaller triangle...make x = 3 and solve

Answer 34

4*3+5 would be 17

Answer 35

Sorry internet problems lol...yes you are correct!

Answer 36

Thanks so much! I have one more question and like NO time (I'm in the car with an almost dead computer) do you think you could just help me on this question? I'd reaaaally appreciate it. @johnweldon1993

Answer 37

Actually I can post a new question since I accidentally closed it lol