SOLUTION: Hi, I am having trouble doing this question. please help. Thank you use the formula d = v t A ferry travels at a constant speed of 18 km/h. How long will it take to cros

Algebra ->  Equations -> SOLUTION: Hi, I am having trouble doing this question. please help. Thank you use the formula d = v t A ferry travels at a constant speed of 18 km/h. How long will it take to cros      Log On


   



Question 1125774: Hi, I am having trouble doing this question. please help. Thank you

use the formula d = v t
A ferry travels at a constant speed of 18 km/h.
How long will it take to cross a river, a distance of 600 meters?

Found 2 solutions by solver91311, josgarithmetic:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


is the distance. You know the distance.

is the speed. You know the speed

is the time. The question asks, "How long will it take...", so it is clear that time is what you want to know to answer the question. Since the distance is 600 meters and the speed is 18 km per hour you first need to make the distance and the speed use the same units. Either change the 600 meters to 0.6 kilometers or change the 18 kilometers per hour to 1800 meters per hour. Then replace the and the with the values you are using and do the arithmetic required to calculate . In other words, either:



or




John

My calculator said it, I believe it, that settles it


Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
600 meters is 0.600 kilometers.

Just in case you also need it, 1 hour is the same as 60 minutes.