a book sold 39,800 copies in its first month of release.

Question

A book sold 39,800 copies in its first month of release. Suppose this represents 9.6% 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

39800= .096t

t= 39800/.096

total= over 398,000

but a little more

use a calculator

t= 414,583 1/3

round off to

414,583 total

make an estimate

39800= about 40000

.096= about .1

40000/.1= 400000=about 414583