In a given year, about 1.52x10^10 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.
To find the total cost to deliver all the pieces of first-class mail, we need to multiply the number of mail pieces (1.52x10^10) by the cost of each stamp ($0.55).
The calculation can be done as follows:
Total cost = Number of mail pieces x Cost per stamp
Total cost = 1.52x10^10 x $0.55
To multiply numbers in scientific notation, we multiply the coefficients and add the exponents:
Total cost = 1.52 x 0.55 x 10^10
Total cost = 0.836 x 10^10 (rounded to three decimal places)
Expressing 0.836 in scientific notation, we move the decimal point one place to the right:
Total cost = 8.36 x 10^9 dollars
Therefore, the total cost to deliver all the pieces of mail is 8.36x10^9 dollars (expressed to the exact decimal place).
To find the total cost in dollars to deliver all the pieces of mail, we can multiply the number of pieces by the cost of each stamp.
Number of pieces of mail = 1.52x10^10
Cost of each stamp = $0.55
Total cost = Number of pieces of mail × Cost of each stamp
= 1.52x10^10 × $0.55
To multiply these two numbers in scientific notation, we can simply multiply the two coefficients and add the exponents:
Total cost = 1.52 × 0.55 × 10^10
= 0.836 × 10^10
Therefore, the total cost to deliver all the pieces of mail is $0.836x10^10.
To find the total cost to deliver all the pieces of first-class mail, we need to multiply the number of pieces by the cost of each stamp.
Number of pieces of first-class mail = 1.52x10^10
Cost of each stamp = $0.55
Total cost = Number of pieces * Cost of each stamp
Total cost = 1.52x10^10 * $0.55
To multiply the numbers in scientific notation, we multiply the coefficients (1.52 * 0.55) and add the exponents (10 + 0).
Total cost = 0.836 * 10^(10+0)
The total cost, expressed in scientific notation to the exact decimal place, is 8.36x10^9 dollars.