A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
The length of a rectangle is twice the width. The area is 648yd^2. Find the length and the width.
anonymous
 5 years ago
The length of a rectangle is twice the width. The area is 648yd^2. Find the length and the width.

This Question is Closed

darthsid
 5 years ago
Best ResponseYou've already chosen the best response.0Do you know how to calculate the area of a rectangle? What's the formula for it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0A=l times w. I set it up this way. Let the length = 2w and the width = w, so with area being 648, the equation is 648=2w(w) correct?

darthsid
 5 years ago
Best ResponseYou've already chosen the best response.0That's exactly right, nice work!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, then after I come up with 648=2w^2, I get lost!! Do I square both sides?

darthsid
 5 years ago
Best ResponseYou've already chosen the best response.0No, you first divide both sides by two to get 324=w^2

darthsid
 5 years ago
Best ResponseYou've already chosen the best response.0Now, to find w, you have to take the square root of both sides

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, then I square both sides?

darthsid
 5 years ago
Best ResponseYou've already chosen the best response.0ok let me explain a little: Squaring sides means raising it to the power of two (multiplying by itself twice) so, square of w is w^2 Square root means the reverse of the above. So you need to take the square root of the sides

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, so it would be the square root of 324=w
Ask your own question
Sign UpFind 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
 Engagement 19 Mad Hatter
 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.