the volume of a box is 192 cubic inches. The height is 4 inches. The width is 2 more than the length. Finding the missing demensions?
回答 (1)
2015-03-20 3:47 am
V = LWH
Let x be the length
192 = x(x+2)4
48 = x² +2x
x² + 2x -48 = 0
(x -6)(x+8) = 0
x=6
x= -8
since a box can't be negative, x=8
Length = 6in
Width is 8in
Height is 4in
To check: 6 * 8 * 4 = 192
Let x be the length
192 = x(x+2)4
48 = x² +2x
x² + 2x -48 = 0
(x -6)(x+8) = 0
x=6
x= -8
since a box can't be negative, x=8
Length = 6in
Width is 8in
Height is 4in
To check: 6 * 8 * 4 = 192
收錄日期: 2021-04-21 01:32:12
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150319194112AAxLmDz