Kayle and Olivia both just got their first jobs. After working for two weeks they received pay checks. Kayle received her check
1 answer:
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Let's say that the speed of the freight train is and the one of the passenger train is
.
MPH means every hour the freight train covers
miles., which means in 3h it will have covered 3 times as much:
mi.
Following the same logic, MPH means every hour the passenger train covers
miles, meaning after 3h it will have covered 3 times as much as well:
mi.
Now, having expressed those distances and speeds algebraically, we find the difference between the two distances covered after 3h, knowing it will be equal to 240:
Knowing this, we can surely affirm that the freight train is travelling at 40MPH and the passenger train is travelling three times as fast, 120MPH.
Answer: OPTION B
Step-by-step explanation:
You can find the distance between two points by using the following formula:
Given the points (-2,-6) and (0,5), you can identify that:
Therefore, substituting values, you get that the distance between those points is:
Answer:
Step-by-step explanation:
Use distributive property:
What is -x * x^2? Answer: -x^3
What is 3 * x^2? Answer: +3x^2
What is -x * -4x? Answer: +4x^2
What is 3* -4x? Answer: -12x
What is -x * -6? Answer: +6x
What is 3 * -6? Answer: -18
Combine like terms, and your answer would be....
Hope this helps :)
Have a great day!