Chapter 0, Problem 42PFG

To determine

To solve the inequality

Answer to Problem 42PFG

  $n\le -21$ is the solution.

Explanation of Solution

Given information:

  $-\frac{n}{7}\ge 3$

Calculation:

The given inequality is $-\frac{n}{7}\ge 3$

Multiplying equation by -7,

  $-\frac{n}{7}\times (-7)\ge 3\times (-7)$

When multiplied by a negative number, the inequality is flipped.

  $n\le -21$

Hence, $n\le -21$ is the solution of the inequality.