SOLUTION: the volume of a box is 175 cu units. find the width & length. The length is x+2 , the width is x and the height is 5

Algebra ->  Volume -> SOLUTION: the volume of a box is 175 cu units. find the width & length. The length is x+2 , the width is x and the height is 5      Log On


   

Question 372027: the volume of a box is 175 cu units. find the width & length. The length is x+2 , the width is x and the height is 5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Volume of a rectangular solid is l*w*h

Question states***

(x+2)x*5 = 175

(x+2)x= 35

x^2 + 2x - 35 = 0

factoring

(x+7)(x-5)= 0

(x+7)= 0  x = -7, cannot use

(x-5)= 0  

x = 5 units, the width.  The length is 7 units  (5+2)



checking our answer

5*7*5 = 175 cubic units