3/5 = 3/y
40 = 3y
Divide both by 3
Answer= 13.3
Answer:
y=1/2x-4.5
Step-by-step explanation:
y=mx+b
Answer:
12m
Step-by-step explanation:
Given that the area of the square DVD case is 144 square cm
Since Area = L²
144 =L²
L = √144
L = 12m
Since the width of the DVD and its case are the same, hence the with of the DVD is also 12m