Step-by-step explanation:
Q3, B
Q4, I'm not too sure about this one but I think its D
You can simplify it by adding 1 to both sides to get 4x < 12, then divide both sides by 4 to get x < 3.
I hope that answers your question!
Answer:
2
Step-by-step explanation:
We can first find x:
6 (x - 3) + 3 = 6x - 3 (3 - x)
6x - 18 + 3 = 6x - 9 + 3x
6x - 15 = 9x - 9
We can then islolate x, getting 3x = -6 and x = -2.
We can then plug in -2 for x and solve x^2 - x:
(-2)^2 - 2 = 4 - 2 = 2
80+ 80= 160 miles
160 miles/ 7 hours= 22.857 miles per hour
