Question

A local library manager randomly surveys a hundred patrons about the type of book they borrow when they visit the library. The manager finds that three patrons borrow novels. If the local library has 345 patrons, approximately how many of them borrow novels when they visit the library? Round the answer to the nearest whole number

Answer 1

To find out approximately how many patrons borrow novels when they visit the library out of the 345 total patrons, we can set up a proportion:

3 patrons out of 100 borrow novels
x patrons out of 345 borrow novels

3/100 = x/345

Cross multiply to solve for x:
100x = 3 * 345
100x = 1035
x = 1035/100
x ≈ 10.35

Rounding to the nearest whole number, approximately 10 patrons out of 345 borrow novels when they visit the library.