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

Question

Mathematics

Zuniga

4 March, 11:00

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

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Sydney Pierce · Answer 1

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