Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
fozia
Group Title
A rectangular picture frame with total area 50000 cm2 includes a border which is 1 cm thick at the top and the bottom and 5 cm thick at the left and right side. What is the largest possible area of a picture that can be displayed in this frame?
 one year ago
 one year ago
fozia Group Title
A rectangular picture frame with total area 50000 cm2 includes a border which is 1 cm thick at the top and the bottom and 5 cm thick at the left and right side. What is the largest possible area of a picture that can be displayed in this frame?
 one year ago
 one year ago

This Question is Closed

campbell_st Group TitleBest ResponseYou've already chosen the best response.1
draw a picture dw:1371797342461:dw you know the area of the picture + frame is 5000 so \[5000 = l \times w\] make w the subject so \[w = \frac{l}{5000}\] and you know the area of the pictues is \[A_{p} = ( l  10)(w  2)\] substitute w \[A_{p} = (l  10)(\frac{l}{5000}  2)\] you now have an area equation in one unknown find the 1st derivative. set it to 0 and solve for l. this should given the necessary dimensions
 one year ago
See more questions >>>
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.