Question

A triangle has one side that measures x, and the other two sides each measure 4 inches less than x. The perimeter is 19 inches.

What is the measure of x?
2
3
5
9

Answer 1

@misty1212 @=
@Luigi0210
@misssunshinexxoxo
tagging random people

Answer 2

@AbdullahM

Answer 3

@MICAAAAAAAAAAAAAAAAAA

Answer 4

This is a hard one for me.

Answer 5

Sorry I can't help you!

Answer 6

@pooja195 Help her please.

Answer 7

Hi!

Answer 8

Hey

Answer 9

Do you know what perimeter means?

Answer 10

Not really.

Answer 11

isn't it like the base.

Answer 12

Which answer do you believe it is?

Answer 13

x+(x−4)+(x−4)=19

Answer 14

The perimeter means you add up all the three sides.

Answer 15

@misssunshinexxoxo To be honest i'm not sure. I don't know how to work it out.

Answer 16

So, what is `4 inches less than x` mean? (In like an equation)

Answer 17

\[4<x\]

Answer 18

Yes

Answer 19

okay. so what next

Answer 20

No, that means

`x-4`

4 inches less than x means we have to do subtraction.

Answer 21

oh

Answer 22

so 19-4?

Answer 23

So two of this sides are \(\sf x-4\) and one side is x

So that means since the perimeter equals to 19:

\(\sf\Large (x-4) + (x-4) + x=19\)

Answer 24

So it would be 9?

Answer 25

@AbdullahM how do i post a different question?

Answer 26

You have to first close this question and open another one.

Answer 27

Okay.

Answer 28

Thank you for helping me.

Answer 29

Also, show me your work for that last equation...

Answer 30

okay

Answer 31

\(\sf\Large (x-4) + (x-4) + x=19\)

we can make that:

\(\sf\Large x-4 + x - 4 + x = 19\)

Add like terms and then isolate x.

Answer 32

(x+x+x)+(−4+−4)=19
there are 3 x's.
-4+-4=-8
3x+−8=19
3x−8=19
then I added 8 to both sides.
3x=27
then I divide both sides by 3
x=9

Answer 33

Great job! :D

Answer 34

:)