Question

there are 9 computers and 72 students. what is the unit rate of students to computers? a (\frac{1 \text{ computer}}{8 \text{ students}}) b (\frac{8 \text{ students}}{1 \text{ computer}}) c (\frac{3 \text{ computers}}{24 \text{ students}}) d (\frac{24 \text{ students}}{3 \text{ computers}})

Explanation:

Step1: Understand unit rate

Unit rate of students to computers means students per 1 computer. So we need to find how many students correspond to 1 computer.

Step2: Calculate the ratio

We have 72 students and 9 computers. To find students per computer, divide the number of students by the number of computers: $\frac{72\ students}{9\ computers} = \frac{8\ students}{1\ computer}$.

Answer:

B. $\frac{8\mathrm{students}}{1\mathrm{computer}}$