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August 31, 2014

August 31, 2014

Posted by **dingbat** on Friday, March 29, 2013 at 11:14pm.

A:

A) The volume of the larger feeder is 4 times as great as the volume of the smaller feeder.

B) The volume of the larger feeder is 12 times as great as the volume of the smaller feeder.

C) The volume of the larger feeder is 64 times as great as the volume of the smaller feeder.

D) The volume of the larger feeder is 82 times as great as the volume of the smaller feeder.

- 7th grade math -
**dingbat**, Friday, March 29, 2013 at 11:18pmCan someone help check this for me???

I believe the answer is B but I am really unsure....

- 7th grade math -
**dingbat**, Friday, March 29, 2013 at 11:39pmHELP!!!!!

- 7th grade math -
**Steve**, Saturday, March 30, 2013 at 4:54amif the sides scale by 4, the volume scales by 4^3=64, so (C)

You can see why this is, since the original volume is

v = lwh

Now, with each dimension scaled by 4,

V = (4l)(4w)(4h) = 4*4*4(lwh) = 4^3 v

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