The area of a rectangular floor is represented by 9x^2+15x square feet and the width of the floor is 3x feet. Which expression represents the length of the floor?
a. 8x ft
b(3x+5) ft
c(3+5x) ft
d(9x^2+12x)ft
I don't know how to solve this.
Help please!
divide the area by the width to get the length
(9x^2 + 15x) / 3x = ?
factor: 9x^2+15x
3x^3+5x^2
Thank you so much @Scott.
Your a lifesaver!
Thanks @Bobpursley
3x+5 !!!!
Ya figured that out
To find the length of the floor, we need to divide the area of the floor by its width. In this case, the area is given as 9x^2 + 15x square feet and the width is given as 3x feet.
So, to find the length, we can use the formula:
Length = Area / Width
Substituting the given values:
Length = (9x^2 + 15x) / (3x)
To simplify the expression, we can divide every term by 3x:
Length = 9x^2 / 3x + 15x / 3x
Simplifying further:
Length = 3x + 5
Therefore, the expression that represents the length of the floor is:
c. (3 + 5x) ft