Answer:
Step-by-step explanation:
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Answer:
Hey there!
See Below.
Step by step explanation:
Total time taken= 11-5=6 hours
Time of stoppage= 1 hour
Actual time taken= 6 hours - 1 hour = 5 hours
![Speed= \frac{distance}{time}](https://tex.z-dn.net/?f=Speed%3D%20%5Cfrac%7Bdistance%7D%7Btime%7D%20)
![= \frac{252}{5} \: km/h](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B252%7D%7B5%7D%20%20%5C%3A%20km%2Fh)
![= 50.4 \: km/h](https://tex.z-dn.net/?f=%20%3D%2050.4%20%5C%3A%20%20km%2Fh)
![Average \: Speed= \frac{total \: distance}{total \: time}](https://tex.z-dn.net/?f=Average%20%5C%3A%20%20Speed%3D%20%5Cfrac%7Btotal%20%5C%3A%20distance%7D%7Btotal%20%5C%3A%20time%7D%20)
![= \frac{252}{6} \: km/h](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B252%7D%7B6%7D%20%20%5C%3A%20%20km%2Fh)
![= 42 \: km/h](https://tex.z-dn.net/?f=%20%3D%2042%20%5C%3A%20km%2Fh)
- Hence,the speed is 50.4 km/h and the average speed is 42 km/h.
Answer:
Step-by-step explanation:
x + y = 4 ---------------(i)
x = 4-y
7x + 9y = 42 -----------(ii)
Plug in x = 4-y in equ (ii)
7*(4 - y) + 9y = 42
28 - 7y +9y = 42
28 + 2y = 42
2y = 42 - 28
2y = 14
y = 14/2
y = 7
x = 4 - y
x = 4 - 7
x = -3
Answer:
0.0674
Step-by-step explanation:
Answer:
B. $90000
Explanation:
30000+30000 = 60000
60000 + 30000 (6% commission of 500000) = 90000