Final answer:
To find the number of schools in the district, divide the total amount of printed surveys by the amount of surveys each school received. In this case, there are 12 schools in the district.
Step-by-step explanation:
To find the number of schools in the district, we can divide the total amount of printed surveys by the amount of surveys each school received. Given that the office used 3 reams of paper and each school received 1/4 of a ream, we need to find how many 1/4s are in 3.
Dividing 3 by 1/4 is the same as multiplying 3 by the reciprocal of 1/4, which is 4/1. Therefore, 3 divided by 1/4 is equal to 3 x 4/1 = 12/1 = 12.
So, there are 12 schools in the district.