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A plane set off to NYC at a speed of 241 mph. On the
return flight of 13 hours, the plane cruised at 229 mph.
How many hours long was the flight to NYC?
And before you say, "Do you're own homework," this isn't homework, I'm currently still in summer break and just practicing, and I don't understand this.
Added 3+ months ago:
your*
Get a ruler in your hands. Measure things until you start to understand how a ruler works. Measure some stuff and figure out where the center is. Say you measure a book and it's 7/8" thick. You look at your ruler and see that every eighth is divided into two sixteenths, so obviously half of 7/8" is going to be 7/16". If you write that out you have 1/2 x 7/8 = 7/16. And you notice that 1/2 is divided into 2/4 and then into 4/8 and so on, so you can convert anything to anything by multiplying all the numbers on top and then all the numbers on bottom.
Other rulers are divided into 10 and 100 parts. But an inch is still an inch, so anything on one ruler can be translated to the other ruler. A half inch on one ruler is 5/10 or 50/100 on the other. An eighth inch is just 12.5 marks when you have 100 marks per inch. A metric ruler divides an inch into 25.4 parts, so a half inch would be 12.7 of those parts. Pretty simple, isn't it? Practice this a bit and people will think you went to wizard school.
229mph x 13h = 2977m
2977m/241mph = 12.356971h
Thanks for your answer- it helped a lot!