The width of a rectangular mirror is 3/4 the measure of the length of the mirror if the area is one 192 in.² what are the length and width of the mirror
hello : let : x the width and y the length ( y ≥ x ) x = (3/4) y ... (1) xy = 192 ....(2) subsct in (2) : ((3/4) y)y = 192 3y² = 768 y² = 256 y² = 16² y = 16.. (because : y > 0) so : x = (3/4) (16) = 12
