Question

The annual expenditure of the US federal government is approximately 4 trillion dollars. If a one dollar bill is 0.0001 meters thick, how many meters tall would a stack of 4 trillion one dollar bills be?

Answer 1

A stack of 4 trillion one dollar bills would be approximately 400,000,000 meters tall.

Step-by-step explanation:

To determine the height of a stack of 4 trillion one dollar bills, we need to find the total thickness of the bills and convert it to meters. Given that a one dollar bill is 0.0001 meters thick, we can calculate the height by multiplying the thickness by the number of bills in the stack:

Height = 0.0001 meters/bill * 4 trillion bills

Converting trillion to 10^12, we have:

Height = 0.0001 meters/bill * 4 * 10^12 bills

Using scientific notation, we rewrite the expression as:

Height = 4 * 10^12 * 0.0001 meters

Performing the multiplication, we get:

Height = 4 * 10^12 * 0.0001 meters = 4 * 10^8 meters

Therefore, a stack of 4 trillion one dollar bills would be approximately 400,000,000 meters tall.