A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
A rectangular room is three times as long as it is wide, and its perimeter is 48 meters. Find the width of the room.
anonymous
 one year ago
A rectangular room is three times as long as it is wide, and its perimeter is 48 meters. Find the width of the room.

This Question is Closed

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Ok so reading it carefully, `rectangular room is three times as long as it is wide` that means length = 3 width, right?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434595931914:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1So our perimeter is \[w+3w+w+3w = 48\] would you agree, as the perimeter means the total distance of a 2d shape (add all the dimensions on a 2d shape)dw:1434596025323:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Now we can solve for the width, can you do that?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1What do you get when you add up w+3w+w+3w?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1\[w+3w+w+3w \implies 8w\] right?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1So we have \[8w = 48\] solve for w now.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ahhh i saw my mistake, w=6

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Yes :) and now lets check if this is right.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1So if we have w = 6, that means length is 18 right because length = 3 * 6 = 18 and if we add it up \[6+3(6)+6+3(6) = 48 \implies 48 = 48 ~~~ \checkmark \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me with one more?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Well to find the slope first you want to put it in y = mx+b form (equation of a line) and your m here is the slope.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434596965637:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1So can you please solve for y?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1What happened to your 5x?

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434597209906:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1dw:1434597326967:dw

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1What will the slope be in \[y = 5/6 x + 19/6\]

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Np just compare it with the equation of line I gave above :)

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.1Well solving for y we get dw:1434597701922:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok slope is 5/6 and 19/6 y intercept
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.