A community for students.
Here's the question you clicked on:
 0 viewing
help123please.
 2 years ago
See attachment
help123please.
 2 years ago
See attachment

This Question is Closed

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2Think of it this way. The recatngle had an original length, L, and an original width, W. The new rectangle has a new length that is (2/3)L and a new width that is (2/3)W. You follow so far?

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2Now let's find the area of the original rectangle and the area of the new rectangle. The area of a rectangle is length times width. The original rectangle: Aold = LW The new rectangle: Anew = (2/3)L * (2/3)W = (2/3)*(2/3)*LW = (4/9)LW

help123please.
 2 years ago
Best ResponseYou've already chosen the best response.1Did you choose 4/9 randomly?

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2Now you see that the new area is (4/9)LW and the old area is LW. That means the new area is 4/9 times the area of the old rectangle.

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2No, 4/9 = 2/3 * 2/3

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2Remember the problem states that the new rectangle has a length and width that are 2/3 what they used to be. So the new length is (2/3)L, and the new width is (2/3)W. When you multiply the new length and the new width to get the new area, you are multiplying (2/3)L * (2/3)W which is the same as (2/3)*(2/3)*LW. (2/3) * (2/3) = 4/9, so the new area is (4/9)LW

help123please.
 2 years ago
Best ResponseYou've already chosen the best response.1OOOOOOH. Ok, I believe I understand it now  thank you.

mathstudent55
 2 years ago
Best ResponseYou've already chosen the best response.2Then when you compare the new area of (4/9)LW with the original area of LW, you see that the new area is 4/9 of the old area.
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.