anonymous
  • anonymous
There are x benches and y students in an auditorium. When a bench is seated with 3 students, 18 are left standing. If a bench is seated with 4 students, 3 benches would be empty. a. Write 2 equations showing the relationship between x benches and y students b. Find the number of benches and students
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
x- benches, y-students y=3x+18 x-3=y/4
anonymous
  • anonymous
Thanks, what about b?
anonymous
  • anonymous
you need to try to solve it by yourself :-) I will help you if you will need it.

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anonymous
  • anonymous
Well alright, no prob there, thanks for the help again
anonymous
  • anonymous
you are welcome. Do you understand it?
anonymous
  • anonymous
Kind of, think I could figure it out by myself though
anonymous
  • anonymous
y=3x+18 y=4(x-3) right parts are equal and you can find x
anonymous
  • anonymous
Yep, I get it
anonymous
  • anonymous
answer is?
anonymous
  • anonymous
one sec
anonymous
  • anonymous
x=30 right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
so y=108
anonymous
  • anonymous
yes, you are right. With system of equations always good to do check for both equations.
anonymous
  • anonymous
Sweet
anonymous
  • anonymous
glad to help
anonymous
  • anonymous
x- benches, y-students y=3x+18 x-3=y/4 y=3x+18 y=4(x-3) x = 30 y = 108

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