In this question, we have to convert 12m/s to km/min .
And for the conversion, we need km in the numerator and min in the denominator .
And 1 km equals to 1000 m and 60 seconds equals to 1 minute .
And that's the required conversion factor to convert 12m/s to km/min.
And hence out of the four given options, correct options are A and B .
1st on the left matches with y. 2nd matches with 6x-2y. 3rd matches with 2x+y.
A steamer going downstream traveled the distance between two ports in 3 hours. The return trip took 3 hours 40 minutes. Find the speed of the water current if the speed of the steamer in still water is 18 mph.
distance = D
return trip time (RT) = 3 hours 40 minutes.
speed of the water current = VW
steamer speed (SS) = 18 mph
direct trip time (DT) = 3 hours
D = DT x (18 + VW) = 3(18 + VW) = 54 + 3VW
D = RT x (18 -VW) = 3.666 x (18 - VW) = 66 - 3.666VW
54 + 3VW = 66 - 3.666VW
3VW + 3.666VW = 66 - 54
6.666VW = 12
VW = 1. 8 mph
Hey! So, here's a tip. When writing exponents, an easier way is to write a^b, rather than a to the b power. Besides that, here is your answer!
So-------
9^3=729
3^2=9
6^3=216
15^2=225
Now that we have that figured out, we can add them together, wish is simple. 729 + 9 + 216 + 225= 1,179.
Therefore, your final answer will be 1,174.
If you have any questions on this, I'm happy to help you. :)
Answer: line r and line s
Step-by-step explanation:
m angle 3=76
So m angle 4=180-76=114
m angle 4=m angle 8=114
line r and line s r parallel