Question

Solve.
−8.5d ≥ 20

d ≤ –170
d ≥ –170

Answer 1

`\rm =>D \leqslant 2.352941`

Explanation:

−8.5d ≥ 20

Divide both sides by -8.5:

`=> \cfrac {- 8.5 \: d}{ - 8.5} \ \geqslant \cfrac{20}{ - 8.5}`

`\rm=>d \leqslant 2.352941`

This is the answer.

Answer 2

The solution to the inequality -8.5d ≥ 20 is d ≤ -2.35.

In mathematics, an inequality is a relation between two expressions that may not be equal. Instead, one expression may be greater than, less than, or equal to the other.

In order to solve the inequality -8.5d ≥ 20:

Divide both sides by -8.5. Remember that when you divide or multiply both sides of an inequality by a negative number, the direction of the inequality sign changes.

d ≤ -20/8.5

Simplify the right side of the inequality:

d ≤ -2.35

Hence, the solution to the inequality -8.5d ≥ 20 is d ≤ -2.35.