SOLUTION: The length of a rectangle is 3 more than four times its width. Its area is 115 square feet. What is its width I have no idea how to solve this - please help

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Question 320894: The length of a rectangle is 3 more than four times its width. Its area is 115 square feet. What is its width
I have no idea how to solve this - please help
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
"The length of a rectangle is 3 more than four times its width" means that L=4W%2B3 and because "Its area is 115 square feet" we also know that 115=LW (since A=LW). Plug in L=4W%2B3 to get 115=%284W%2B3%29W. From here, distribute and get everything to one side. After combining like terms and simplifying, use the quadratic formula to solve for W.