Problema Solution

Find the length and width of a box that can hold 192cm3 When the height is 4cm and the length is 2cm more than the width

Answer provided by our tutors

Let


l = the length of the box, l>0


w = the width of the box, w>0


h = 4 cm the height of the box


V = 192 cm^3 the volume of the box


The length is 2 cm more than the width:


l = w + 2


The volume of the box V = l*w*h thus we have


l*w*h = 192


plug h = 4 cm and l = w + 2 into the last equation:


(w + 2)*w*4 = 192

........


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........

w = 6 cm


l = 6 + 2


l = 8 cm


The length of the box is 8 cm.


The width of the box is 6 cm.