We want to get out x's together on the right side of the inequality.
So, subtract <em>x </em>from both sides to get 9 < 3x.
Now divide both sides by 3 and we get 3 < x.
I personally like to have my variables on the left so we can move the 3 to the left and the <em>x</em> to the right but if we do that, we have to switch the inequality sign.
So we can rewrite this as x > 3.
Answer:
By rounding to nearest tenth which would be the 3.16 which is closer to 3 than 3.25
Step-by-step explanation:
The correct answer is A.
The independent variable is time and the dependent variable is distance; this means the slope tells us how far she goes per minute. Since the slope is negative and we are referring to her distance from her house, this means the distance from her house is decreasing, which means she is getting closer to her house.