The perimeter of a rectangle is 32 feet. Find the dimensions of the rectangle if the length is 4 feet longer than three times the width. Then find the area of the rectangle.

Question

anonymous · Answer

2(x+y)=32
x+4=y

anonymous · Answer

Could you explain? Im confused :P

anonymous · Answer

where x and y are the length and width

anonymous · Answer

use substitution to solve for x and y

anonymous · Answer

So would I do 3x+4=32? 4 more than 3 times the width?

anonymous · Answer

Sorry, I really dont get this stuff.

anonymous · Answer

Oh wait, I get it, nevermind, thank you!

anonymous · Answer

put x+4=y into 2(x+y)=32 to get 2(x+x+4)=32

anonymous · Answer

2(2x+4)=32

anonymous · Answer

after you solve it, substitute x back into one of the equations to solve for y