Question

Solve.

5x – 10 ≤ 20

(–∞, 2]
(–∞, 2)
(–∞, 6]
(–∞, 6)

Answer 1

c

Explanation:

edge

Answer 2

For this case we must solve the following inequality:

`5x-10 \leq20`

Adding 10 to both sides of the inequality:

`5x-10 + 10 \leq20 + 10\\5x \leq30`

Dividing between 5 on both sides of the inequality:

`\ \frac {5x} {5} \leq \frac {30} {5}\\x \leq6`

Thus, the function is defined for all values of "x" less than or equal to 6

Answer:

(-∞, 6]

Option C