SOLUTION: The length of a rectangle is 10 inches, and the width Is represented by 3x. Which best represents an Equation and solution for x if the area of the Rectangle is 40 square inch

Algebra ->  Angles -> SOLUTION: The length of a rectangle is 10 inches, and the width Is represented by 3x. Which best represents an Equation and solution for x if the area of the Rectangle is 40 square inch      Log On


   

Question 1073607: The length of a rectangle is 10 inches, and the width
Is represented by 3x. Which best represents an
Equation and solution for x if the area of the
Rectangle is 40 square inches?
A. 10(3x) = 40;x=4
B. 30x = 40; x = 1 1/3
C. 3x = 40; x = 13 1/3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
For a rectangle,
A=LW
40=10%283x%29
30x=40
x=40%2F30
x=4%2F3