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chocodropa7

The following is a rectangle. Find x and y using the information given. AB = 2x DC = -7y - 1 AD = x BC = -2y +10

  • one year ago
  • one year ago

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  1. chocodropa7
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    |dw:1366268375485:dw|

    • one year ago
  2. chocodropa7
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    2(-2y+10)=-7y - 1 this is the equation I came up with so far

    • one year ago
  3. chocodropa7
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    HELOOO

    • one year ago
  4. dave0616
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    y and x will be the same for the whole rectangle, so if you set up an equation where 1 variable equals some numbers and the other variable that should help, im working on the problem now myself

    • one year ago
  5. chocodropa7
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    ok show when finished

    • one year ago
  6. qweqwe123123123123111
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    Neat puzzle! Drawing the diagram shows that x = -2y+10 and 2x = -7y-1 With these 2 equations, you can solve for y, and figure out x

    • one year ago
  7. chocodropa7
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    Can you solve please

    • one year ago
  8. dave0616
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    @qweqwe123123123123111 did you get the answer? if you did, message me, and let me know what you got so we can compare

    • one year ago
  9. chocodropa7
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    No I didn't get the answers Im stuck

    • one year ago
  10. qweqwe123123123123111
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    Yes, I can solve it. But the purpose of this board is to teach YOU how to solve it.

    • one year ago
  11. dave0616
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    i agree with @qweqwe123123123123111 i am not willing to just hand out answers

    • one year ago
  12. chocodropa7
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    -__-

    • one year ago
  13. chocodropa7
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    I have the equation set up I just need help solving

    • one year ago
  14. dave0616
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    well what are you equations?

    • one year ago
  15. chocodropa7
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    2(-2y+10)=-7y - 1

    • one year ago
  16. chocodropa7
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    I think not sure

    • one year ago
  17. dave0616
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    nope thats not it. remember that the top and bottom are equal, and the sides are equal. given that information, set up two equations

    • one year ago
  18. chocodropa7
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    Can you give example I don't know how to do that

    • one year ago
  19. dave0616
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    ok, so we know that ab is the top and the equation is 2x, and we know that dc is the bottom, and the equation is -7y-1. because it is a rectangle the top and bottom will be equal in size. so you can set the equations equal to each other: 2x=-7y-1. can you set up an equation for the sides?

    • one year ago
  20. chocodropa7
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    x=-2y+10

    • one year ago
  21. dave0616
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    correct. now pick one of the equations and solve for one of the variables. i decided to start with the equation for the sides. since it is already equal to x, you can plug that entire equation into x in the other equation. so it will look like: 2(-2y+10)=-7y-1 now solve for y, and post what you get so i can tell you if you are correct

    • one year ago
  22. chocodropa7
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    Dude that's exactly what I said the first time

    • one year ago
  23. chocodropa7
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    Thats the same equation I wrote and I said I'm having trouble solving it

    • one year ago
  24. dave0616
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    alright man, well i didnt recognize that. im sorry, you dont need to get so snippy man, just tryin to help. ok ok ok well now we know where we are.

    • one year ago
  25. dave0616
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    ok first you have the equation: 2(-2y+10)=-7y-1 Multiply 2 out: -4y+20=-7y-1 Collect the y's on one side 3y=-21 divide by 3 y=-7

    • one year ago
  26. chocodropa7
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    So for x do we plug it in one of the equations? If so which one?

    • one year ago
  27. dave0616
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    do you remember the equation we got for the top and bottom? plug what you got for y into the equation and solve for x

    • one year ago
  28. chocodropa7
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    ok one sec

    • one year ago
  29. chocodropa7
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    x=25 or 24?

    • one year ago
  30. dave0616
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    24 man. its 24

    • one year ago
  31. chocodropa7
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    I'm just making sure I get the right answer man, I can't afford to get anything wrong. WORK ON YOUR PATIENCE (JERK)

    • one year ago
  32. dave0616
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    dude, you are the one being a jerk, from the beginnning you had no patience. im not just gonna spit you an answer. im gonna make you wait for it man. my patience? i have no idea where you think im not being patient

    • one year ago
  33. qweqwe123123123123111
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    RELAX GANG!!! Once you found that y = -7, all you had to do to find x is remember that: x = -2y+10 With that you would replace all the "y"s with "-7" and figure it out: x = -2(-7)+10 which is: x = 14+10 which is x = 24

    • one year ago
  34. chocodropa7
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    First I give you the right eqation then you say its wrong, I ask simply if x is 24 or 25 and you call me a jerk. If I didn't ask and would've put 25 I wouldve gotten a 0 for my grade so excuse me for asking

    • one year ago
  35. chocodropa7
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    Thank You Q!

    • one year ago
  36. dave0616
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    i didnt realize it was the same equation man. my bad for not recognizing how you just spit out an equation without explaining how you got there. and you were the one who is like "i need an answer now now now" so w.e man.

    • one year ago
  37. dave0616
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    sorry for trying to make you do it, and not just give you an answer

    • one year ago
  38. chocodropa7
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    All good man and I never said that but w.e

    • one year ago
  39. dave0616
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    well you pretty much did man. but w.e im glad you got the answer, and have a good night

    • one year ago
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