A community for students.
Here's the question you clicked on:
 0 viewing
cdelomas
 3 years ago
A banner is 4 feet longer than its width the area is 77 square feet. what is the width and length
cdelomas
 3 years ago
A banner is 4 feet longer than its width the area is 77 square feet. what is the width and length

This Question is Closed

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1354222764363:dw so w(w+4)=77

cdelomas
 3 years ago
Best ResponseYou've already chosen the best response.0soould be the width and length

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1yes, so do you know how to solve this equation above? that will give you your width

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1have you learned how to factor?

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1so you have the equation w(w+4)=77 so the first step would be to do distributive property, so now you have w^2+4w=77

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1subtract 77 from both sides and your equation is now w^2+4w77=0

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1Now you must factor it. When I factor it I get (w+11)(w7)=0

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1Now you test both solutions. w+11=0 and w7=0. When I solve both of those I get w= 7,11. Since you cannot have a negative width, the answer for the width is 7.

kirk.freedman
 3 years ago
Best ResponseYou've already chosen the best response.1Now just from the original picture you do w+4, since you know w now, it is 7+4. So you have the width is 7 and the length is 11.
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.