Answer:
x = 23
Step-by-step explanation:
Δ ABC and Δ DEF are congruent by the SAS postulate, thus corresponding sides are congruent, that is
BC = EF, substitute values
x - 4 = 19 ( add 4 to both sides )
x = 23
X = the number of people in the color guard
3x - 15 = 105
3x = 105 + 15
3x = 120
x = 40
there are 40 people in the color guard :)
45 ft^2 is the surface area
Answer:
The inequality is 6x ≥ -24
The solution of this inequality is {x : x ∈ R, x ≥ -4} ⇒ [-4, ∞)
Step-by-step explanation:
- In the inequality not more than means ≤
- In the inequality at least means ≥
Let us solve the question
∵ Six times a number x means 6 × x = 6x
∵ At least means ≥
∴ Six times a number x is at least -24 is 6x ≥ -24
∴ The inequality is 6x ≥ -24
Now we will find the solution of the inequality
∵ 6x ≥ -24
→ Divide both sides by 6
∵ ≥
∴ x ≥ -4
∴ The solution of this inequality is {x : x ∈ R, x ≥ -4} ⇒ [-4, ∞)