Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

robinfr93

  • 3 years ago

Can someone help me solve this....

  • This Question is Closed
  1. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1348871903875:dw| If length of this rectangle be thrice its width and its perimeter be 56, then find the co ordinates of the rest of the sides...

  2. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Can you use that information to set up the two equations you need?

  3. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ive tried but Im getting two second degree equations!!!

  4. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Actually I'm down with a terrible cold so my brain aint working so well.. So need a lil help!!!

  5. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Woah. Well, "The length is thrice the width" --> L=3W.

  6. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    "Perimeter is 56" --> 2L+2W=56.

  7. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yah got that part ryt!!

  8. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Sub the first equation into the second to solve for W.

  9. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    length = 18 units and breadth 6

  10. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    18 and 6 won't get you a perimeter of 56.

  11. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    :P

  12. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ryt!! Sorry!!! 21 and 7!!

  13. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Excellent. Now you can just count over and down from the given point to find all the other coordinates.

  14. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah!! But when I try to use the distance formula!!! Im getting two second degree equations!! How m I suppose to solve them when ive got two equation something like ax^2+b^y2+cx+dy+e=0

  15. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think i made some mistake somewhere. Would you be kind enough to help me out!! Its the darn cold!!

  16. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Forget about the distance formula! Just count.

  17. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The distance formula is so overrated. It is merely the pythagorean theorem, but when you have horizontal and vertical lines, you don't need to solve for a hypotenuse.

  18. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    then?? Should I just put in simple increment formula and solve??

  19. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I know its suppose to be darn simple but my heads all frozen up!! @CliffSedge

  20. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1348872917396:dw|

  21. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1348872954175:dw| etc.

  22. CliffSedge
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    No formulas, no solving - elementary arithmetic.

  23. robinfr93
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    k got it!! :D Thank man!!! Thanx a ton!! :P hahahahha!! Ryt!!

  24. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy