7. An administrator surveys a random sample of 48 out of 900 middle school students. Using the survey results, the administrator predicts that 225 students are in favor of the new dress code.
How many of the 48 students surveyed were in favor of the new dress code?

12 students

Step-by-step explanation:

225 is 25% of 900 and 25% of 48 is 12.

answer: x= -2y

step-by-step explanation:

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.