A local library manager randomly surveys 80 patrons about the type of book they borrow when they visit the library. The
manager finds that 3 patrons borrow novels. If the local library has 345 patrons, approximately how many of them borrow
novels when they visit the library? Round your answer to the nearest whole number. (1 point)
To find out approximately how many of the 345 patrons borrow novels, we can set up a proportion:
3 patrons borrow novels out of 80 surveyed patrons is equal to x patrons borrow novels out of 345 total patrons.
3/80 = x/345
Cross multiply:
80x = 3*345
80x = 1035
x = 1035/80
x ≈ 12.9
Rounded to the nearest whole number, approximately 13 of the 345 patrons borrow novels when they visit the library.