Chapter 6.4, Problem 6PPS

To determine

To find: whether the set of numbers in given table is proportional or not.

Answer to Problem 6PPS

The set of numbers in given table is proportional.

Explanation of Solution

Given information:

Consider the table

Calculation:

Find the ratio of junk to total emails.

  $\begin{array}{l}\Rightarrow \frac{10}{15}=\frac{2}{3},\\ \Rightarrow \frac{20}{30}=\frac{2}{3},\\ \Rightarrow \frac{30}{45}=\frac{2}{3},\\ \Rightarrow \frac{40}{60}=\frac{2}{3}\end{array}$

All the set of numbers are in same ratio $=\frac{2}{3}$ .

Hence,

The set of numbers in given table are in proportional.