SOLUTION: A brick has a mass of 2 kg. If you have the height,double the width and double the length of the brick,how much would it weigh?

Algebra ->  Bodies-in-space -> SOLUTION: A brick has a mass of 2 kg. If you have the height,double the width and double the length of the brick,how much would it weigh?       Log On


   



Question 831095: A brick has a mass of 2 kg. If you have the height,double the width and double the length of the brick,how much would it weigh?

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The density does not change, but only the volume is being changed.
Using x, y, z for length, width, height; the volume is xyz.
For keeping the same height, but doubling the length and width, this volume is %282x%29%282y%29z=4xyz.

This is a factor of %284xyz%29%2F%28xyz%29=4.
The weight will also change this way, because the density stays the same as before. 2%2A4=highlight%288%29 kg.



"If you have the height," ------ Not sure what you meant. Have the same height? Have what about the height?