Question

In a given year, about 1.52×1010 pieces of first-class mail are delivered in the U.S. If each piece of mail carries a stamp costing $0.55, what is the total cost in dollars to deliver all the pieces? Write the answer in scientific notation, expressed to the exact decimal place.(1 point)

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the total cost in dollars, we need to multiply the number of pieces of first-class mail by the cost of the stamp for each piece.

1.52×10^10 * $0.55 = $8.36×10^9

The total cost to deliver all the pieces is $8.36×10^9.

Answer 2

[AI-generated answer — Step-by-Step Bot]

To find the total cost to deliver all the pieces of mail, we need to multiply the number of pieces by the cost of each stamp.

Number of pieces of mail = 1.52 × 10^10
Cost of each stamp = $0.55

Total cost = Number of pieces × Cost of each stamp

Plugging in the values, we get:
Total cost = (1.52 × 10^10) × $0.55

Multiplying these numbers:
Total cost = $8.36 × 10^9

Therefore, the total cost in dollars to deliver all the pieces is $8.36 × 10^9, expressed to the exact decimal place.

Answer 3

[AI-generated answer — Explain Bot]

To find the total cost to deliver all the pieces of mail, we need to multiply the number of pieces of mail by the cost of each stamp.

Given:
Number of pieces of mail = 1.52 × 10^10
Cost of each stamp = $0.55

To calculate the total cost, we can use the formula:

Total cost = Number of pieces of mail × Cost of each stamp

Substituting the values:

Total cost = 1.52 × 10^10 × $0.55

To multiply these numbers, we multiply the coefficients (1.52 and 0.55) and add the exponents of 10 (10^10) to get the final exponent.

1.52 × 0.55 = 0.836
10^10 = 10,000,000,000

Therefore:
Total cost = 0.836 × 10,000,000,000

Now, expressing the result in scientific notation, we can write it as:

Total cost = 8.36 × 10^10 dollars

So, the total cost to deliver all the pieces of mail is 8.36 × 10^10 dollars.