Algebra
posted by Anonymous
Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet?
(A) x squared  8x + 240 = 0
(B) 2x(2x8x+16)=240
(C) x squared + 8x + 240 = 0
(D) x squared + 8x  240 = 0
I got (x)(8x)=240 aka x squared + 8x = 240, which isn't any of the answer choices. I'm leaning towards (B) though, but I don't understand. Can someone please help me figure this one out? Thanks.

bobpursley
You should have started with Length times width.... (8+x)x=240

Anonymous
I know. That was a typo. So where do I go from there?
Respond to this Question
Similar Questions

Algebra Repost
Which equation could be used to find the dimensions of a room that has a length of 8 feet longer than the width, x, and has an area of 240 square feet? 
math
Sam is going to tile a rectangular room that has an area of 64 square feet. He will be using square tiles that measure 1/4 square feet. If the dimensions of the sun room are to be whole numbers in feet, list all of the possible sets … 
algebra
Samantha's homework is to determine the dimensions of her rectangular backyard. She knows that the length is 10 feet more than the width, and the total area is 144 square feet. Write an equation that Samantha could use to solve this … 
Math
I need some help with this problem please!! your parents are installing a rectangular inground pool with the dimensions 24 feet by 10 feet. They decide to place a walkway around the pool 3 feet wide. What is the area of the proposed … 
Algebra
The length of a rectangular banner is 3 feet longer than its width. If the area is 70 square feet, find the dimensions. 
algebra b
the length of a rectangular banner is 5 feet longer than the width. If the width is 84 square feet, find the dimensions 
Algebra Homework, HELP!
1) A rectangle has an area of 297 square inches and a width which is three inches less than four times the length. Find the length and the width of the rectangle. 2) Let x represent the length of the shorter leg in a right triangle. … 
Algebra
Algebra Word Problems: 1. The length of the floor of a onestorey building is 14 feet longer than its width. The building has 1,632 square feet of floor space. Write a quadratic equation for the area of the floor in terms of w. Find … 
math
The length of a rectangular room is two feet less than three times its width. The area of the rectangle is 176 square feet. a) Write an algebraic equation to model this problem. b) Solve the equation to find the dimensions of the rectangle. 
math
The length of a rectangular room is two feet less than three times its width. The area of the rectangle is 176 square feet. a) Write an algebraic equation to model this problem. b) Solve the equation to find the dimensions of the rectangle. …