Answer:
The cost of extracting the first 50 tons of copper is $151,000.
Step-by-step explanation:
Start-up costs of $150,000.
For the 50 tons of cooper.
So
1 thousand dollars.
$150,000 + $1,000 = $151,000
4
6 gallons
1) $30/10 gallons= $3 per gallon
So...
2) $18/3=<u>6 gallons</u>
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Look at the picture.
We have the triangle 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2.
Therefore we have the equation:
x=3
x+3(-3)=-6
x-9=-6
+9 +9