help me please

Question

help me please

song_of_the_sole · Answer

so far i know the
 length= 8
width= 2
height=12 
and i know the volume of the cereal box is 192 cubic units because 8*2*12=192
and i know the surface area is 272 square units because 24+24+96+96+16+16=272

song_of_the_sole · Answer

Calculate the cost of manufacturing a standard cereal box if cardboard costs $0.05 per square inch.

song_of_the_sole · Answer

@jhonyy9

song_of_the_sole · Answer

@jhonyy9

anonymous · Answer

so than what is your question here - ? bc. you are right how i saw it now

song_of_the_sole · Answer

Calculate the cost of manufacturing a standard cereal box if cardboard costs $0.05 per square inch.

song_of_the_sole · Answer

how do i do this

anonymous · Answer

so you know the surface area equal 272 square inch - yes ?

song_of_the_sole · Answer

yah

anonymous · Answer

and you know that 1 square inch has a cost of $0,05 

so use the rule of 3 simple 
do you know it ?

anonymous · Answer

are you here please ?

song_of_the_sole · Answer

i dont really remember can u refresh my memory

anonymous · Answer

1 square inch has a cost $0,05 
272 square inch ---   $x
---------------------------

 x= 272*0,05/1 = ? $

anonymous · Answer

ok. ?

song_of_the_sole · Answer

136

anonymous · Answer

x = 272 time 0,05 = ?

how you got 136 bc. not is right

anonymous · Answer

there is not 0,5 there is 0,05

song_of_the_sole · Answer

wait let me re cal this

song_of_the_sole · Answer

oh i see i meant to put 13.6 not 136

anonymous · Answer

so than what will be the right cost ?

song_of_the_sole · Answer

13.6

song_of_the_sole · Answer

?

anonymous · Answer

yes exactly

song_of_the_sole · Answer

oh okay thank you so much!!

song_of_the_sole · Answer

also i have to Design a new cereal box that will hold the same amount of cereal but reduce manufacturing costs. Prove that your new design holds the same amount but can be manufactured more cheaply. any advise?

anonymous · Answer

np

was my pleasure and hope you understand it now sure right

song_of_the_sole · Answer

any advise on the question i posted above?

anonymous · Answer

so than i understand it right so than you ned minimize make smaler the surface area but the volume of cereal remain the same cantitie - yes ?

song_of_the_sole · Answer

yah i think so

song_of_the_sole · Answer

it has to hold the same amount but cheaper

anonymous · Answer

ok we can tray it but please post it in openquestion column

song_of_the_sole · Answer

so you want me to make a new post?

anonymous · Answer

yes sure

song_of_the_sole · Answer

okay