How do both plants and animals fight pathogens. A.both have a protective outer layer B.both have an antigen-antibody response C.
2 answers:
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Answer:
$4375.64 is the cost for making one ton of the brass sample of mass 1 Tonn.
Explanation:
Mass of the brass = 1 ton = 907185 g
Mass of copper = x
Mass of zinc = y
x + y = 907185, ....[1]
Volume of the brass = V
Density of the brass = D =
Volume of copper = v
Volume of zinc = v'
Density of copper = d =
Density of zinc = d' =
v + v' = V
...[2]
On solving [1] and [2]:
x = 633,419 g
y = 273,766 g
1 g = 0.001 kg
x = 633,419 g = 633.419 kg
y = 273,766 g = 273.766 kg
The price of zinc = $1.80/kg
Price of 273.766 kg of zinc = $1.80/kg × 273.766 kg = $492.78
The price of copper = $6.13/kg
Price of 633.419 kg of zinc = $6.13/kg × 633.419 kg = $3882.86
Cost for making one ton of the brass sample :
$492.78 + $3882.86 = $4375.64