### 3,600,000 (3.6 million) Nickels Add Up Nicely

This story was on page A11 of the Saturday, 5 February 2005, Arizona Republic.

```   "Police searching for marijuana in the Miami area
discovered an entirely different stash buried four
feet underground Friday: millions of nickels that
vanished last year en route to the Federal Reserve
in New Orleans."
```

The police found `3.6 million nickels`. How many U.S. dollars is this? A nickel written as a decimal number is `\$0.05`.

The `3.6 million` nickels ended up weighing `450,000 pounds`. How many ounces is this? There are `16 ounces` in a pound.

The stash of nickels were stored between `900` bags. How many nickels per bag is this?

##### Update::10/16/2005

During a MAT102 lecture, we extended this BAB to calculate the weight per nickel. Our answer came out to be a completely bogus. The piece of data in question is that the nickels weighed `450,000` pounds.

I used the web to find an archived copy of the news story and it said the nickels weighed almost `23 tons`. [source::MSN.com]

```   1) convert tons to pounds (lbs)
assume 2,000 lbs. per 1 ton

23 tons approximates 23 x 2000 lbs (i.e. 46,000 lbs)

2) calculate lbs per nickel

46000 lbs       0.0127 lb
--------------- =  ---------
3600000 nickels     1 nickel

3) convert 0.0127 lb into ounces
assume 16 ounces per pound

0.0127 x 16  =  .2032 ounce

4) calculate how many nickels it would take to weigh 1 pound

? nickels     1 nickel
---------  =  ---------
1 lb        0.0127 lb

1 / 0.0127 = approximately 78.74 nickels

...or...

? nickels      1 nickel
---------  =   ---------
16 oz       .2032 ounce

16 / .2032 = approximately 78.74 nickels

```

I decided to provide a hyperlink to this news story for future reference. Due to their archive policies, I was not able to hyperlink to the original story at AzCentral.com. I don't hyperlink to MSN.com; therefore, I found another copy of the story at FindArticles.com.

FindArticles.com:: Heist of a truck hauling 3.6 million nickels

Doh! FindArticles.com says the weight of the nickels was `22.5 tons`. Recall, we used `23 tons` to figure out the weight of one nickel. MSN.com said the nickels weighed almost `23 tons`. `22.5 tons` rounded up to the nearest whole ton is `23 tons`; however, `0.5 ton` represents `1,000` pounds.

##### Exercise
1. The update provided by FindAricles.com indicates that the 3.6 million nickels weighed `22.5 tons`. Recalculate the approximate weight of one nickel using `22.5 tons` instead of `23 tons`.

In the original version of this BAB, I wrote that the `3.6 million` nickels weighed ```450,000 pounds```. This was mis-information (i.e. erroneous data), but I don't know how the error was introduced; in other words, either the Arizona Republic article was in error or else I made an error in reading or copying the data.