Answer:
[1, ∞)
Step-by-step explanation:
To solve a compound inequality, first separate it into two inequalities and solve them separately:
Solution of Inequality 1:
x + 7 ≥ 4
⇒ x ≥ 4 - 7
⇒ x ≥ -3
Solution of Inequality 2:
11x - 8 ≥ 3
⇒ 11x ≥ 3 + 8
⇒ 11x ≥ 11
⇒ x ≥ 1
As both graphs overlap for x ≥ 1, this is the solution.
Therefore, in interval notation: [1, ∞)
You cannot find an lcm of 90 without another number
(about 3,610 miles) / (33.5 hours)
= (about 3,610 / 33.5) (mile/hour)
= about 107.8 mile/hour .
The answer to 7 I think it’s B. And for 8 I’m sure it’s D.