Question

answer this question than I marked it as brainlist ​

Answer 1

Answer:

155mm

Step-by-step explanation:

volume of box = 15dm^3 = 15000 cm^3

interior length of box = 78cm - 2*1.5cm = (78 - 3)cm = 75 cm

interior width of box = 19cm - 2*1.5cm = (19-3)cm = 16 cm

let the interior height be h and exterior height be H where H = (h + 3) cm then,

volume of box = lbh

15000cm^3 = 75cm * 16cm  * h cm

15000 cm^3 / 75*16cm^2 = h cm

12.5 cm  = h cm

H cm = h cm + 3 cm = (12.5 + 3) cm = 15.5 cm = 155 mm