Question

A book sold 39,200 copies in its first month of release. Suppose this represents 8.7% of the number of copies sold to date. How many copies have been sold to date?

Round your answer to the nearest whole number.

Answer 1

Answer: 450574.7126 which rounds up to 450575

Step-by-step explanation: Do cross multiplication

100 X

----- x ---------

8.7 39200

100 x 39200 = 3920000/ 8.7 = 450574.7

TO CHECK ANSWER

450574.7216 x 8.7% ( convert to decimal .087) = 39200