Question

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 !!

Answer 1

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/

Answer 2

Is it 36 ? @welshfella

Answer 3

No
each side( or face) is a square with side length 8
so the area of one square is 8 * 8 = ? square cms?

Answer 4

64 cm

Answer 5

64 square cms - remember its an area
and there are 6 of these
so total area = 6 * 64 = ? sq cms

Answer 6

384cm²

Answer 7

right
now to find the cost we have to find how much paint we need to paint the whole cube

Answer 8

Kk

Answer 9

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?

Answer 10

I got 18

Answer 11

* divide 384 by 20

Answer 12

no its more than that

Answer 13

Yeah your right its 19.2

Answer 14

so thats 19.2 cans

and cost will be 19.2 * 4 = $76.80

Answer 15

In part of the question its says the store will not allow her to purchase a decimal of a can

Answer 16

right - I just thought of that So she'd have to buy 20 cans which is $80.

Answer 17

Yeah So $80 is my final answer ?

Answer 18

yes

Answer 19

Alrighty thank you so much @welshfella :) I really appreciate your help :)

Answer 20

yw

Answer 21

Alrighty thank you so much @welshfella :) I really appreciate your help :)