Weighing cents boxes, simultaneous equatns and predictions

[JerrySpringer]

Got a $25 box of cents from the bank. I weighed it. Weighs 14.8625 pounds ( 14lbs. 13.8 oz) . I am not factoring cardboard and wrapper weights into this calculation. Used this set of simultaneous equations to make a prediction of copper percentage:

X = Zincoln count

Y = non Zincoln ( 95% Cu mostly) count


For a $25 box:

X + Y =2500

Box weighs 237.8 ounces ( 14.8625 lbs * 16 ounces/lb)

Zincoln weighs 0.088 ounces
95% Cu cent weighs 0.109 ounces


(X * 0.088) + ( Y* 0.109) = 237.8

Using this calculator:

https://www.symbolab.com/solver/simulta ... calculator


I will plug in the 2 equations

X + Y = 2500

0.088X + 0.109Y = 237.8


The calculator gives me X = 1652 and Y =17800/21 = 847

This works out to nearly a 33% Cu yield.

I will be going through the box this week. I'll let you all know how it turns out.

[cwgii]

Interesting. Occasionally I will weigh rolls. Knowing that zn will be 125 ish.
CU will be 155. Therefore anything over 130 will meet my avg.