Question

Point M is the midpoint of Ac . Find AC if AM = x+9 and MC = 4x

Answer 1

M is between A and C.
You need to find the distance between A and C. That would be the total distance of the line. You know both sides, just add them together and solve.

Answer 2

AC is 12

Answer 3

okay but i keep getting the wrong answer I'm doing x+9+4x and at the end i get 1.8 but thats wrong the right answer is 24 but i don't get that answer

Answer 4

AC is 12 because midpoint means that M is exactly in the middle so both sides are equal so you equal them together and the answer comes out that AC is 12

Answer 5

my teacher she gave us a review with the answers and it says the answer is 24

Answer 6

AC is 24 i just didn't retriceboth together

Answer 7

I didn't add both sides together*

Answer 8

The only time you would add them together is if it didn't say M was the midpoint

Answer 9

could you show me how to do it like type it out cuz I'm not getting those answers

Answer 10

I missed the midpoint part.
AM and MC are the same length. They equal each other.
AC would be double the amount of either one.

So your equation would be 2(am=ac)
or 2(x+9=4x)

Answer 11

Solving x+9=4x would give you the length of either side. The 2 would double it to the find the total length.

Answer 12

x+9=4x then subtract x from both sides to get 9=3x then divide 3 on both sides then x equals 3 then you do AM= (3)+9= 12 MC=4(3)= 12 then add them both together to get AC=24

Answer 13

thank you both so much!!!

Answer 14

You're Welcome I'm taking Geometry now and this is exactly what we are doing

Answer 15

could you help me with 2 more problems ?

Answer 16

Sure.

Answer 17

point J is between H and K on HK . If HJ= 5x-4, jk= 8x-10, and Kh = 38 find jk

Answer 18

Point B is between A and C on AC. If ac= 4x+4, ab= 14 and bc = 3x-4 find ac

Answer 19

1. 5x-4+8x-10=38, combine like terms 13x-14=38 add 14 to both sides 13x=52 divide 13 on both sides and x=4. JK=8(4)-10= 22

Answer 20

Start by drawing it out. Might help you see it better.

Answer 21

2. 14+3x-4=4x+4 combine like terms 3x+10=4x+4 subtract 3x from both sides to get 10=x+4 subtrat 4 fom both sides to get x=6 then plug it in to AC, AC=4(6)+4=28

Answer 22

thnx soo much! i need so much help on math tbh

Answer 23

The way I think about these is to draw it out. Then I can see that HJ+JK=HK. Put in the equations as they are given and solve. With that you can solve for x, and then just plug x into the equation they are asking you to solve (in that case jk). I'm a very visual person and find it much easier that way.

Answer 24

You're welcome im really good at all math, Algebra, Geometry and Trig. Im only in 10th grade too. Im also a visual learner and im sitting here writing these on paper lol

Answer 25

lol! see i don't get it at all…

like find the coordinates of the midpoint of PQ if p (-5,5) and Q (7,3) help

Answer 26

Lol do you have a reference sheet? theres a formula for midpoint when using coordinates

Answer 27

I can answer that if you want me to.

Answer 28

-5+7 5+3
------ -------
2 , 2 (1,4)

Answer 29

how did u get (1,4) though

Answer 30

you add -5+7 then divide that by 2 to get 1. Then 5+3 to get 8 and divide that by 2 to get 4

Answer 31

It's easier to understand if you had a refereance sheet to look at all the time

Answer 32

thanks I'm going to fail my exam 2maro..
are u willing to keep helping me

Answer 33

Ill help you for as long as you need. All I have is time since we don't have school today, and I took all my midterms last week what grade are you in?

Answer 34

I'm in 9th, lol and thanks so much! all our exams are this week ! and I've been studying for math all weekend and i just can't get it..

Answer 35

Im sure you'll get it sooner or later

Answer 36

hahah hopefully !


what is the distance between F(-1,4) and G(6,-4) on the circle
wtf is this omg help.

Answer 37

it also says round to nearest hundredth

Answer 38

On a circle it's kind of like the radius but the midpoint is still a point.

Answer 39

so do u solve it with the (x1,y1) thing

Answer 40

No thats to find the midpoint for this question you use the distance formula

Answer 41

ohhh okay i got it!

Answer 42

do you still need me to help you solve it?

Answer 43

umm yeah please

Answer 44

√ ̅(6+1)^2 +(-4-4)^2 plug it in to the calculator and the answer comes out to be 12.81

Answer 45

omg ur a life savior

Answer 46

Hahah thanks

Answer 47

so for this we have to find x
and at the top of the triangle theres (x) then theres 2x and its a right triangle

Answer 48

nvm i got it lol

Answer 49

Like this

Answer 50

Oh OK

Answer 51

If RG is the median of triangle TRI , TG=(5-10X), and TI=(32-9X) FIND X

Answer 52

.. sorry for caps lmao

Answer 53

is there a picture?

Answer 54

ya one sec

Answer 55

its not letting me draw it

Answer 56

Ill draw waht I think it looks like

Answer 57

Thats what I thought it looked like.

Answer 58

haha yeah so could u help

Answer 59

yes

Answer 60

yay

Answer 61

X=-2. 5-10x+5-10x=32-9x combine like terms, -20x+10=32-9x add 9x to both sides -11+10=32 subtract 10 to both sides to get -11=22 then divide -11 to both sides to get x=-2.

Answer 62

thank you I'm done with math lol thnx!