anonymous
  • anonymous
Tina has a cubic container she uses to store all of her pencils. The cubic container has a side length of 8cm. She would like to paint the entire outside of the container a new, shiny blue color. Blue paint comes in cans that contains 10 ounces of paint. Each can of paint costs $4.00. If every ounce of paint covers 2 square cm of the container, how much will Tina have to spend in total to paint the entire outside of the container? PLZZ HELP !!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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welshfella
  • welshfella
first you have to find the area of outside of the cube . That is the area of each side * 6 as there are 6 sides to a cube. can you do that/
anonymous
  • anonymous
Is it 36 ? @welshfella
welshfella
  • welshfella
No each side( or face) is a square with side length 8 so the area of one square is 8 * 8 = ? square cms?

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anonymous
  • anonymous
64 cm
welshfella
  • welshfella
64 square cms - remember its an area and there are 6 of these so total area = 6 * 64 = ? sq cms
anonymous
  • anonymous
384cm²
welshfella
  • welshfella
right now to find the cost we have to find how much paint we need to paint the whole cube
anonymous
  • anonymous
Kk
welshfella
  • welshfella
2 sq cms af area requires 1 ounce of paint so one can (10 oz) will paint 10*2 = 20 sq cms so divide 384 by use your calculator what do you get?
anonymous
  • anonymous
I got 18
welshfella
  • welshfella
* divide 384 by 20
welshfella
  • welshfella
no its more than that
anonymous
  • anonymous
Yeah your right its 19.2
welshfella
  • welshfella
so thats 19.2 cans and cost will be 19.2 * 4 = $76.80
anonymous
  • anonymous
In part of the question its says the store will not allow her to purchase a decimal of a can
welshfella
  • welshfella
right - I just thought of that So she'd have to buy 20 cans which is $80.
anonymous
  • anonymous
Yeah So $80 is my final answer ?
welshfella
  • welshfella
yes
anonymous
  • anonymous
Alrighty thank you so much @welshfella :) I really appreciate your help :)
welshfella
  • welshfella
yw
anonymous
  • anonymous
Alrighty thank you so much @welshfella :) I really appreciate your help :)

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