Help! Fiding dimentions from an equation.
I need some help figuring out how to find the dimensions to this question:
A rectangle has perimeter 64cm and area 23cm^2. Solve the following system of equations to find the rectangle's dimensions.
a) l = 23/w
l + w = 32
b) solve the system of equations
x^2 + y^2 = 1
xy = 0.5
Please and thank you! I know the answer, I just don't know how to do the question.
