SOLUTION: a dorm room at a college your sister is considering seems small. The room is rectangular and has a perimeter of 42 feet. The room is 4 feet longer than it is wide. what are the dim

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: a dorm room at a college your sister is considering seems small. The room is rectangular and has a perimeter of 42 feet. The room is 4 feet longer than it is wide. what are the dim      Log On


   

Question 77701: a dorm room at a college your sister is considering seems small. The room is rectangular and has a perimeter of 42 feet. The room is 4 feet longer than it is wide. what are the dimensions of the room
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
a dorm room at a college your sister is considering seems small. The room is rectangular and has a perimeter of 42 feet. The room is 4 feet longer than it is wide. what are the dimensions of the room
The formula for the perimeter of a rectangle is P=2L%2B2W, P=perimeter, L=length, and W=width
Let width =x
Then length is: x+4
P is: 42
42=2(x+4)+2(x)
42=2x+8+2x
42=4x+8
42-8=4x+8-8
34=4x
34/4=4x/4
17/2=x
8 1/2 =x
The width x=8 1/2 ft
The length x+4=8 1/2 +4= 12 1/2 ft
Happy Calculating!!!