the richardsons are moving. they find that they most buy some cartons. so, they want to know which of the following cartons is the more economical (costs less per cubic foot of space.)A:2ft. by 2ft. by 1 ft. $0.75 each
B:3ft. by 2ft. by 1/2ft. $0.60 each.

which carton should they buy

Question

the richardsons are moving. they find that they most buy some cartons. so, they want to know which of the following cartons is the more economical (costs less per cubic foot of space.)A:2ft. by 2ft. by 1 ft. $0.75 each 
B:3ft. by 2ft. by 1/2ft. $0.60 each. 

which carton should they buy

anonymous · Answer

Well, calculate how much the two options cost per cubic ft...

angelic · Answer

i don't understand can u help me

anonymous · Answer

Do you know how to find volume?

angelic · Answer

is it lwh

anonymous · Answer

Yes.

anonymous · Answer

V = l*w*h

angelic · Answer

ok

anonymous · Answer

2 ft. by 2 ft. by 1 ft. means 2x2x1

anonymous · Answer

So what they want you to do is to find volume and divide it by the cost per volume unit (ft^3 in this case) and see which one is cheaper.

angelic · Answer

i got it wrong but thanks for the help

anonymous · Answer

A: (2x2x1) ft^3/.75 $/ft^3 =5,333 $
B: (3x2x1) ft^3/.60 $/ft^3 = 10 $

angelic · Answer

oh