Answer:
w= 15
l= 60
Step-by-step explanation:
the formula of a rectangle is A=wl
lets put the width as x
and the length 4x
now we put them into the equation
900= x(4x)
900= 4x^2
square it:
900= 4x^2
30= 2x
devide by 2
30/2 = 2x/2
15=x so thats the width and the length is 60
