Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

jacalneaila

  • one year ago

the perimeter of a rectangle is 256 cm. if the sides are in the ratio 2:5. find the rectangle?.. with medal

  • This Question is Closed
  1. ranga
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Let L be the length and W be the width of the rectangle. Perimeter = 2(L+W) = 256 divide both sides by 2 L + W = 128 ----- (1) Sides are in the ratio 2:5 That means W/L = 2/5 cross multiply 5W = 2L divide both sides by 5 W = 2L/5 ---------- (2) Put W from equation (2) into (1) and solve for L. Then put the L value in (2) and solve for W.

  2. jacalneaila
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @ranga what??

  3. jacalneaila
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you explain it clearly

  4. ranga
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Do you want to know how to solve or do you want to know how I got the 2 equations?

  5. jacalneaila
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i want to know how to solve

  6. ranga
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    L + W = 128 ----- (1) W = 2L/5 ------ (2) Put W = 2L/5 in the first equation L + 2L/5 = 128 multiply each term by 5 to get rid of the fraction: 5L + 2L = 640 7L = 640 L = 640/7 = 91.43 cm Put this in (2) W = 2L/5 = 2*91.43/5 = 36.57 cm. L = 91.43 cm; W = 36.57 cm.

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.