Answer:
it's not greater than it would be 2x-3y because you can add then together because the not the same variable
Step-by-step explanation:
Answer:
34758066
Step-by-step explanation: obviously ;)
Answer:
![average\ speed = 36\ mi/hr](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%2036%5C%20mi%2Fhr)
Step-by-step explanation:
Given:
Each city is exactly 120 miles from the other two.
Average rate from city A to city B = 60 mi/hr
Average rate from city B to city C = 40 mi/hr
Average rate from city c to city A = 24 mi/hr
We need to find the Dale's average rate for the entire trip.
Solution:
First we find the total time and total distance by following way.
Time taken to travel from A to B = ![\frac{Distance}{Speed} = \frac{120}{60}= 2\ hr](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%7D%7BSpeed%7D%20%3D%20%5Cfrac%7B120%7D%7B60%7D%3D%202%5C%20hr)
Time taken to travel from B to C = ![\frac{Distance}{Speed} = \frac{120}{40}= 3\ hr](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%7D%7BSpeed%7D%20%3D%20%5Cfrac%7B120%7D%7B40%7D%3D%203%5C%20hr)
Time taken to travel from C to A = ![\frac{Distance}{Speed} = \frac{120}{24}= 5\ hr](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%7D%7BSpeed%7D%20%3D%20%5Cfrac%7B120%7D%7B24%7D%3D%205%5C%20hr)
So, total time taken = ![2+3+5=10\ hr](https://tex.z-dn.net/?f=2%2B3%2B5%3D10%5C%20hr)
Total distance = 120 + 120 + 120 = 360 miles
Using average speed formula.
![average\ speed = \frac{Total\ distance}{Total\ time\ taken}](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%20%5Cfrac%7BTotal%5C%20distance%7D%7BTotal%5C%20time%5C%20taken%7D)
![average\ speed = \frac{360}{10}](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%20%5Cfrac%7B360%7D%7B10%7D)
![average\ speed = 36\ mi/hr](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%2036%5C%20mi%2Fhr)
Therefore, the average rate for the entire trip ![average\ speed = 36\ mi/hr](https://tex.z-dn.net/?f=average%5C%20speed%20%3D%2036%5C%20mi%2Fhr)
1) the answer is 30
2) the answer is 10
3) the answer is 17
4) the answer is 6
comment if you want a explanation:)