anonymous
  • anonymous
What is the solution to the system of equations? https://static.k12.com/bank_packages/files/media/mathml_363e6eac5ed7265edb0b7421494695880859ad91_1.gif
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@green_1 can you help me please
mathmale
  • mathmale
Hello, Raven! Which methods of solving systems of linear equations have you used before?
anonymous
  • anonymous
Which system of equations can be used to solve the following problem? Each child ticket for a ride costs $3, while each adult ticket costs $5. If the ride collected a total of $150, and 40 tickets were sold, how many of each type of ticket were sold? Let c be the number of child tickets and a be the number of adult tickets. A. 3a + 5c = 40 a + c = 150 B. 5c +3a =150 c + a = 40 C. 3c + 5a = 150 a + c = 40 D. 3c + 5a = 40 a + c =150

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mathmale
  • mathmale
I'd suggest you choose the method most familiar to y ou and then apply it to this particular problem.
anonymous
  • anonymous
that doesn't help me
mathmale
  • mathmale
You have 2 different problems posted. Which do you want to focus on?
anonymous
  • anonymous
the second one the first was answered but the person who answered it deleted their reply
mathmale
  • mathmale
I am trying to find out what you already know. I assume you've solved systems of linear equations before, so that we could use an approach familiar to you to solve the problem at hand.
mathmale
  • mathmale
Among the methods you've probably studied so far are: substution, elimination by addition/subtraction, and graphing. Whic shall we apply to the problem at hand?
anonymous
  • anonymous
can someone else help me?
mathmale
  • mathmale
I stand by the question I've asked y ou: which methods of solving systems of equations have y ou used before? I do that so as to build our discussion on something familiar to you.
mathmale
  • mathmale
If x+y=5, and if 2x-y = 6, the substitution method could be easiest . Solve the 2nd equation for y. Then substitute your expression for y into the first equation.
anonymous
  • anonymous
i'm just getting confused because i have studied a lot but i am behind in class and i forgot how to do it
mathmale
  • mathmale
I'm sorry about that, but that's no excuse for not getting personally involved in solving this problem. Can you do the problem I typed in immediately above, using the substitution method?
anonymous
  • anonymous
did you read the problem? that is not in it at all
mathmale
  • mathmale
The problem I posted was an EXAMPLE posted for the purpose of illustrating the substitution method. If x+y=5, and if 2x-y = 6, the substitution method could be easiest . Solve the 2nd equation for y. Then substitute your expression for y into the first equation. the 2nd equation, 2x-y=6, can be solved for y. y=2x-6. Substitute (2x-6) for y in the first equation. What do you obtain?

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