Twelve less than four-fifths of a number is more than 24. What are all the possible values of the number? Lucia wrote the inequality 4/5n−12>24 , where n equals the number, to help solve this problem. Solve her inequality.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

To solve the inequality \( \frac{4}{5}n - 12 > 24 \), we can follow these steps:

  1. Add 12 to both sides:

    \[ \frac{4}{5}n - 12 + 12 > 24 + 12 \]

    This simplifies to:

    \[ \frac{4}{5}n > 36 \]

  2. Multiply both sides by \( \frac{5}{4} \) to isolate \( n \):

    \[ n > 36 \times \frac{5}{4} \]

    Calculating \( 36 \times \frac{5}{4} \):

    \[ 36 \times \frac{5}{4} = 36 \times 1.25 = 45 \]

    So we have:

    \[ n > 45 \]

Thus, the solution to the inequality is

\[ \boxed{(45, \infty)} \]

This means all values of \( n \) that are greater than 45 satisfy the original inequality.