cast iron contains 4.25% carbon. Find the weight of a bar which contains 1.7 lbs of Carbon
If cast iron contains 4.25% carbon, then that means 4.25%, or 0.0425 of the iron bar will be carbon.
If a bar has 1.7 lbs of carbon, 4.25% of the weight of that bar is 1.7 pounds. So, we set up the equation:
0.0425x=1.7, with x being the weight of the bar in pounds (lbs).
Divide both sides by 0.0425, and you get x=40.
So, the bar weighs 40 pounds.
Hope this helped and thanks!
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