Question

8 - 1/4 n is greater than or equal to 20

Answer 1

`n \leq -48`

Explanation:

Step 1: Convert to an expression

8 - 1/4 n is greater than or equal to 20

`8 - (1)/(4)n \geq 20`

Step 2: Subtract 8 from both sides

`8 - 8 - (1)/(4)n \geq 20 - 8`

`- (1)/(4)n \geq 12`

Step 3: Multiply both sides by -4

`- (1)/(4)n * -4 \geq 12 * -4`

Since we are multiplying by a negative we flip the greater than equal sign to a less than equal sign.

`n \leq -48`

Answer:
`n \leq -48`