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SarahLove<3 Group Title

A group of 19 students want to see the show at the planetarium. Tickets cost $11 for each student who is a member of the planetaruim's frequent visitor program and $13 for each student who is not a member. The total cost of the student's tickets is $209. How many students in the group are members of the frequent visitor program? How many are not members? Explain how you know. @Squirrels @prowrestler @dan815

  • one month ago
  • one month ago

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  1. SarahLove<3 Group Title
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    Please help :)

    • one month ago
  2. dan815 Group Title
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    x+y=19 11(x)+13(y)=209 solve for x and y

    • one month ago
  3. prowrestler Group Title
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    is there a shorter version to do this that' should be a lot of work

    • one month ago
  4. SarahLove<3 Group Title
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    I solve for it and I always get like 19 or some decimal o-o

    • one month ago
  5. SarahLove<3 Group Title
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    It just doesn't seem right!

    • one month ago
  6. prowrestler Group Title
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    i think i got a decimal also

    • one month ago
  7. SarahLove<3 Group Title
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    But putting the decimal back in for x and such it doesn't add up correctly to 209 v-v I was told that @dan815 was really smart, I was hoping he could help me

    • one month ago
  8. SarahLove<3 Group Title
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    @kc_kennylau can you assist me? I really need help with this v-v

    • one month ago
  9. kc_kennylau Group Title
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    (1)x11: 11x+11y = 209 ---(3) (2)-(3): 2y=0 --> y=0 ---(4) (4)>(1): x=19 ---(5)

    • one month ago
  10. SarahLove<3 Group Title
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    x = 19?

    • one month ago
  11. SarahLove<3 Group Title
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    So there are no non members? o_O

    • one month ago
  12. kc_kennylau Group Title
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    yep

    • one month ago
  13. SarahLove<3 Group Title
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    OMG SO I WAS RIGHT THE WHOLE TIME

    • one month ago
  14. SarahLove<3 Group Title
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    It just seemed so weird, why would they have it like that o-o

    • one month ago
  15. kc_kennylau Group Title
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    Never doubt yourself :p

    • one month ago
  16. SarahLove<3 Group Title
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    I'm in an Algebra honors class, I get everything else except these type of problems v-v

    • one month ago
  17. SarahLove<3 Group Title
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    So when something that weird shows up, I'm unsure if it's correct or not

    • one month ago
  18. SarahLove<3 Group Title
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    But thank you so much @kc_kennylau !!! Also, what grade level are you at, just curious :)

    • one month ago
  19. kc_kennylau Group Title
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    I'm at a level equivalent to grade 9

    • one month ago
  20. kc_kennylau Group Title
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    I will be at a level equivalent to grade 10 in september

    • one month ago
  21. SarahLove<3 Group Title
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    How o_O

    • one month ago
  22. SarahLove<3 Group Title
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    Like how old are you?

    • one month ago
  23. kc_kennylau Group Title
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    15

    • one month ago
  24. SarahLove<3 Group Title
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    Ok c;

    • one month ago
  25. prowrestler Group Title
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    how are you that smart

    • one month ago
  26. SarahLove<3 Group Title
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    People work really hard to get to that level of intellect!

    • one month ago
  27. prowrestler Group Title
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    good job man

    • one month ago
  28. SarahLove<3 Group Title
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    Only confusing thing know is me wondering why he did those: ---3 ---4 ---5 o_O

    • one month ago
  29. SarahLove<3 Group Title
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    now*

    • one month ago
  30. SarahLove<3 Group Title
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    Is that some sort of way to keep your equation organized or something

    • one month ago
  31. kc_kennylau Group Title
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    So that I can refer to the equations

    • one month ago
  32. SarahLove<3 Group Title
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    yeah :P So all that stuff like (4) > 1: is a system you developed for when you answer questions on here? Wow...interesting

    • one month ago
  33. kc_kennylau Group Title
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    I usually write subst (4) into (1) in exams

    • one month ago
  34. kc_kennylau Group Title
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    But I'm too lazy

    • one month ago
  35. kc_kennylau Group Title
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    So that's a yes

    • one month ago
  36. SarahLove<3 Group Title
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    Arent we all lazy in our own special little ways? haha :P

    • one month ago
  37. kc_kennylau Group Title
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    I suppose so ;)

    • one month ago
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