A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
Translate this problem to an equation and solve.
The width of a rectangle is 6 inches less than twice its length. Find the dimension of the rectangle if its area is 108 square inches. @johnweldon1993
anonymous
 3 years ago
Translate this problem to an equation and solve. The width of a rectangle is 6 inches less than twice its length. Find the dimension of the rectangle if its area is 108 square inches. @johnweldon1993

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0let length be l width= 2 * l  6 let width be w l * w = 108 I think you can solve this now

johnweldon1993
 3 years ago
Best ResponseYou've already chosen the best response.0Just as @sampatho2 has shown W = 2L  6 A = L x W We know area 108 = L x W We know W = 2L  6 so substitute that in for 'W' 108 = L x (2L  6) can you take it from here...?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0where are you facing the problem. You just need to solve the equation for l

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0but i still dont get it

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Let x be the length and y the width. Then : \[2x6=y\\xy=108\] So from the 2nd equation we have : \[x=\frac{108}{y}\] And from the 1st equation : \[2\frac{108}{y}6=y\] We multiply by y to get : \[2166y=y^2\] And then : \[y^2+6y216=0\] so : \[\Delta=364\times(216)=900\] So : \[y=\frac{6+\sqrt{900}}{2}=\frac{6+30}{2}=12 \text{ inches}\] And then : \[x=\frac{108}y=\frac{108}{12}=9 \text{ inches}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0i dont get it still @johnweldon1993 @Noura11

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Tell me what didn't understand in my solution and I will try to explain it to you ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0the whole thing tht u did its suppost to be like this type the answer in this from:6*7

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Can you explain more , please ?
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.