Question

Yolanda sold total 50 ticket. Adult ticket cost 5 dollar each. Student ticket cost 3 dollar each.she total collected 180 dollar. How many adult ticket did she collected? and how many student ticket did she collected?

Answer 1

Someone please help me

Answer 2

Yeah

Answer 3

Okay first set up some equations.
5A + 3S = $180
A + S = 50

Answer 4

Then what I do

Answer 5

Now we have to solve these 2 equations.
Multiply the bottom equation by -3
and it becomes
-3A -3S = -50

We then add this to the first equation
5A + 3S = $180
-3A -3S = -150

Can you take it from there?

Answer 6

I still don't get it
How did u do it?

Answer 7

Okay the first equation sets up the money part of it
$5 * (# of adult tickets) + $3*(# of student tickets) = $180

Answer 8

The second equation is concerned with the number of tickets
# of Adult tickets + # of Student tickets = 50 tickets

Answer 9

But how do I solve that problem?

Answer 10

Okay time for that.
When you have 2 unknowns, you need 2 equations and you have to know how to solve those.
5A + 3S = $180
A + S = 50
One way to do this is to multiply one equation by another number so when added to the other equation one unknown will be eliminated.
So we get the second equation and multiply it by -3.
Why? Because this eliminates one of the unkowns.
5A + 3S = $180
-3A -3S = -150
Can you add those 2 equations?

Answer 11

Do you have any other way to do it I am still confused with this way
But thanks for your help I appreciate it
If you want to help me contact me with email please
My email is jamanorthi@yahoo.com

Answer 12

That's about the easiest way.
Anyway, I'll send you an E-Mail.

Answer 13

Thank you so much

Answer 14

Can I have your email
So if I need help
I can ask u
It's okay if you don't want to

Answer 15

I already sent you an E-Mail so just go to your mailbox.

Answer 16

It didn't say anything about the problem

Answer 17

Well I did say a few postings ago can you add these 2 equations?
5A + 3S = $180
-3A -3S = -150

Answer 18

I got the answer
But how can I explain it in word

Answer 19

Why did u multiply -3 with the bottom equation

Answer 20

How did u get -3

Answer 21

It was done to eliminate 1 unknown.

Answer 22

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Answer 23

Then please answer it

Answer 24

Someone contact me in email and help me out please