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anonymous

  • 5 years ago

"ella took her boyfriend to a pizza store and spent 24.50 on 2 buffets and 2 hours of gaming. the next night she took her parents, buying 3 buffets and 4 hours of gaming and spend 37. 25. what is the cost of a buffet meal?

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  1. anonymous
    • 5 years ago
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    x = buffet y = gaming 2x + 2y = 24.50 || 4x + 4y = 49 3x + 4y = 37.25 || 3x + 4y = 37.25 x = 11.75

  2. anonymous
    • 5 years ago
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    how did you do that?!

  3. anonymous
    • 5 years ago
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    2x + 2y = 24.50 multiple by 2 = 4x + 4y = 49 3x + 4y = 37.25 multiple by 1 = 3x + 4y = 37.25 then 4x + 4y = 49 3x + 4y = 37.25 --------------- - x + 0 = 11.75 x = 11.75

  4. anonymous
    • 5 years ago
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    why did you multiply by 2 on the first one?

  5. anonymous
    • 5 years ago
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    to eliminate y because we juast need x

  6. anonymous
    • 5 years ago
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    ohhhh okay could you help me with another story problem?

  7. anonymous
    • 5 years ago
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    ok let me try it

  8. anonymous
    • 5 years ago
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    a movie is ocming to theathers and they are selling adult tickets for 10.50 and childrens tickers for 5.50. the theather sold 500 tickets opening night and made 4,700 dollars in sales. how many children attended the opening night?

  9. anonymous
    • 5 years ago
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    x = adult y = children x+y = 500 10.50x + 5.50y = 4700 because u need to find y, u have to eliminate x, can u do this?

  10. anonymous
    • 5 years ago
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    for the first equasion do i need to times everything by 10.50

  11. anonymous
    • 5 years ago
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    is the answer 50 kids?

  12. anonymous
    • 5 years ago
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    is the answer 50 kids?

  13. anonymous
    • 5 years ago
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    x+y = 500 | x 10.50| 10.50x + 10.50y = 5250 10.50x + 5.50y = 4700 |x1| 10.50x + 5.50y = 4700 -------------------- - 5y = 550 y = 110

  14. anonymous
    • 5 years ago
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    byt what about the first y?????

  15. anonymous
    • 5 years ago
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    y = children ticket

  16. anonymous
    • 5 years ago
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    hmm, are u got it?

  17. anonymous
    • 5 years ago
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    i dont get it at all...

  18. anonymous
    • 5 years ago
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    which part u dont understand?

  19. anonymous
    • 5 years ago
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    all of it.

  20. anonymous
    • 5 years ago
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    ok a movie is coming to theathers and they are selling adult tickets for 10.50 and childrens tickers for 5.50. the theather sold 500 tickets opening night and made 4,700 dollars in sales. how many children attended the opening night? 1st step to solve that kind of problem is choose a decision variable

  21. anonymous
    • 5 years ago
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    let x = # adult ticket and y = # children ticket then we have a constraint: 1. theatre capacity is 500 ticket so, x+y = 500 2. ticket prices for adult = 10.50 and children = 5.50 so , 10.50x + 5.50y = 4700 until this can u understand?

  22. anonymous
    • 5 years ago
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    yes, im jsut not understanding thennext part, like how you get the 2 equasions.

  23. anonymous
    • 5 years ago
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    yes, im jsut not understanding thennext part, like how you get the 2 equasions.

  24. anonymous
    • 5 years ago
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    yes, im jsut not understanding thennext part, like how you get the 2 equasions.

  25. anonymous
    • 5 years ago
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    theather capacity is 500 ticket so, we have to divide that theather for adult(x) and children (y) x+y = 500 ---> number of adult + number of children must be equal to 500

  26. anonymous
    • 5 years ago
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    ohh okay

  27. anonymous
    • 5 years ago
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    if i helped u can u give me medal or become my fans :D

  28. anonymous
    • 5 years ago
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    yeah i will!

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