Final answer:
To find the total number of copies sold for a book, when given that 34,400 copies account for 8.9% of the total, divide 34,400 by 0.089. The result is approximately 386,517 copies sold to date, rounded to the nearest whole number.
Step-by-step explanation:
The student has asked about calculating the total number of copies sold for a book, given that 34,400 copies represent 8.9% of the total sales to date. To find the total number of copies sold, we need to divide the number of copies known to have been sold by the percentage they represent:
Total copies sold = Number of copies sold ÷ Percentage of total
In this case, it would be:
Total copies sold = 34,400 ÷ 0.089
Carrying out this calculation:
Total copies sold ≈ 386,517 (rounded to the nearest whole number)
Therefore, approximately 386,517 copies of the book have been sold to date.