SOLUTION: The perimeter of rectangle ABCD is 42 cm and the area is 80 cm2. Which equation can be used to find the dimensions of the rectangle? (Hint: Set up a system of equations). optio

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: The perimeter of rectangle ABCD is 42 cm and the area is 80 cm2. Which equation can be used to find the dimensions of the rectangle? (Hint: Set up a system of equations). optio      Log On


   

Question 1038306: The perimeter of rectangle ABCD is 42 cm and the area is 80 cm2. Which equation can be used to find the dimensions of the rectangle? (Hint: Set up a system of equations).
options:
xy + 2x + 2y = (42)(80)
x^2 + 80x - 42 = 0
x^2 - 42x + 80 = 0
x^2 - 21x + 80 = 0
Answer by josgarithmetic(39617) About Me  (Show Source):