Question

Joe's dad had a box 2 ft long, 1 ft high, and 1 ft wide in which to pack items from the garage. After packing a few items, Joe found the box was not big enough. He suggested they use another box that was tewce as long, twice as high,and twice as wide. He said the box would have twice the volume as the first box. Was he right? Explain.

Answer 1

@timo86m

Answer 2

what do u think ? was he right ?
whats the formula of volume of box ?

Answer 3

lwh?

Answer 4

yes,V=lwh
now twice as long-->2l,
twice as high--->2h
and twice as wide --->2w
so what is the new volume ?

Answer 5

is it 2V ?

Answer 6

um it is not twice the volume of the first box.

Answer 7

thats correct, its not twice.
So, how many times is the new volume ?

Answer 8

um, 4?

Answer 9

how come?

Answer 10

new V = (2l)(2w)(2h) =... ?

Answer 11

2*2*4?

Answer 12

16?

Answer 13

new V = (2l)(2w)(2h) =2*2*2 lwh = ...?

Answer 14

8.

Answer 15

so, wht should i write?

Answer 16

yes. new volume is 8 times the old.

Answer 17

okay. but he is not correct. so,no,because the new box has a volume of 8 times more than the old one?

Answer 18

would that be a good statement?

Answer 19

yes, the statement is correct.

Answer 20

thank you,sir*shakes hands with hartnn*

Answer 21

welcome ^_^