This is incorrect. X can be negative, making the expression on the left less than 0. If x were -10, then:
3 x -10 + 1 > 0
-30 + 1 > 0
-29 > 0
Is NOT true.
I think the answer is a. -3x^2-x-5
This can be solve by establishing equations.
let x be the miles mrs. storey drove
y be the miles mr storey drovee
the first equation is
y = 3x
second equation
x + y = 3200
then substitute equation 1
x + 3x = 3200
4x = 3200
x = 800 miles mrs storey drove
y = 3x = 2400 miles mr storey drove
The answer is x=22 because you just have to add the two equations together and then solve for 8x+4=180
Answer:
(3.75, 5.5)
Step-by-step explanation:
Please see attached picture for full solution.
