SOLUTION: A rectangle has a perimeter of 9.1 inches. If the length is 3.91 inches, find the width. The width is ___ inches.

Algebra ->  Decimal-numbers -> SOLUTION: A rectangle has a perimeter of 9.1 inches. If the length is 3.91 inches, find the width. The width is ___ inches.       Log On


   

Question 913944: A rectangle has a perimeter of 9.1 inches. If the length is 3.91 inches, find the width.
The width is ___ inches.

Answer by EdenWolf(517) About Me  (Show Source):
You can put this solution on YOUR website!
The equation for the perimeter of a rectangle is 2l%2B2w=P. We already know the perimeter and the length, so let's plug those into the equation. We get:
2%2A3.91%2B2w=9.1
7.82%2B2w=9.1
Subtract 7.82 from both sides.
2w=1.28
Divide 2 from both sides.
w=0.64
The width is 0.64 inches. Hope I helped!