Jamanorthi
  • Jamanorthi
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?
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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Jamanorthi
  • Jamanorthi
Someone please help me
Jamanorthi
  • Jamanorthi
Yeah
wolf1728
  • wolf1728
Okay first set up some equations. 5A + 3S = $180 A + S = 50

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Jamanorthi
  • Jamanorthi
Then what I do
wolf1728
  • wolf1728
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?
Jamanorthi
  • Jamanorthi
I still don't get it How did u do it?
wolf1728
  • wolf1728
Okay the first equation sets up the money part of it $5 * (# of adult tickets) + $3*(# of student tickets) = $180
wolf1728
  • wolf1728
The second equation is concerned with the number of tickets # of Adult tickets + # of Student tickets = 50 tickets
Jamanorthi
  • Jamanorthi
But how do I solve that problem?
wolf1728
  • wolf1728
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?
Jamanorthi
  • Jamanorthi
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
wolf1728
  • wolf1728
That's about the easiest way. Anyway, I'll send you an E-Mail.
Jamanorthi
  • Jamanorthi
Thank you so much
Jamanorthi
  • Jamanorthi
Can I have your email So if I need help I can ask u It's okay if you don't want to
wolf1728
  • wolf1728
I already sent you an E-Mail so just go to your mailbox.
Jamanorthi
  • Jamanorthi
It didn't say anything about the problem
wolf1728
  • wolf1728
Well I did say a few postings ago can you add these 2 equations? 5A + 3S = $180 -3A -3S = -150
Jamanorthi
  • Jamanorthi
I got the answer But how can I explain it in word
Jamanorthi
  • Jamanorthi
Why did u multiply -3 with the bottom equation
Jamanorthi
  • Jamanorthi
How did u get -3
wolf1728
  • wolf1728
It was done to eliminate 1 unknown.
goformit100
  • goformit100
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Jamanorthi
  • Jamanorthi
Then please answer it
Jamanorthi
  • Jamanorthi
Someone contact me in email and help me out please

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