Math percent pre algebra

Question

A book sold 32,000 copies in his first month of release suppose this represents 7.4% 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

32000 = 1.074x

x = 32000/1.074= about 29,795

if 32000 represents a 7.4% increase

but you probably meant

32000 = 7.4% of x = .074x

x = 32000/.074 = about 432,432 sold to date

Answer 2

Hi Hayleigh!

Whenever I am dealing with percentage problems, I try to utilize the following formula:

Part/whole = Percentage/100

In the problem you shared, we know the following:

Part= 32,000 books

Percent= 7.4

That would mean we need to solve for “whole” as follows:

32000/W =7.4/100

First, you cross multiply.

3,200,000 = 7.4W

Then, divide both sides by 7.4.

432,432.432 = W

Finally, round to the nearest whole number, 432,432.

That would mean that around 432,432 books have been sold to date.