A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
The length of a rectangular sign is 3ft longer than the width. If the signs area is 54 square ft, find its length and width.
anonymous
 one year ago
The length of a rectangular sign is 3ft longer than the width. If the signs area is 54 square ft, find its length and width.

This Question is Closed

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441133780483:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0We don't know the length or the width, but we do know something about the length in terms of the width. "The length of a rectangular sign is 3ft longer than the width." This suggests we should pick a variable to represent the width. Then we will write an expression for the length in terms of the width.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Let the width be w. Since the length is 3 ft longer than the width, what is the length in terms of w?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441133962071:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0The length is w + 3 dw:1441134192865:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Now use the length and width, w, and w + 3, to write an expression for the area. Area of rectangle = length * width. Then set the area expression equal to the given area, 54. Solve the equation for w, and that is the width. Add 3 to the width to find the length.
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.