b) The container is coated with 2 layers of specialty paint that costs $6.05 per jar. Each jar of paint covers 800 cm². How much does the paint cost?
Since each jar of paint covers 800 cm², we need to calculate the total area of the container to know how many jars we will need. Let's assume the container has a height of 10 cm, a length of 20 cm, and a width of 15 cm:
Total area = 2(l x h) + 2(w x h) + (l x w)
Total area = 2(20 x 10) + 2(15 x 10) + (20 x 15)
Total area = 400 + 300 + 300
Total area = 1000 cm²
Now we can calculate how many jars of paint we need:
Jars of paint = Total area ÷ Area covered by each jar
Jars of paint = 1000 ÷ 800
Jars of paint = 1.25
Since we can't buy a fraction of a jar of paint, we need to round up to the nearest whole number, which means we need to buy 2 jars of paint.
The cost of one jar of paint is $6.05, so the cost of 2 jars of paint is:
Cost of paint = Cost per jar x Number of jars
Cost of paint = $6.05 x 2
Cost of paint = $12.10
Therefore, the paint will cost $12.10.