# I'm having a hard time solving problems on speed and time and need help?

• Sep 1st 2012, 03:24 PM
somruthai
I'm having a hard time solving problems on speed and time and need help?
Hello,

I'm new in town! I'm about to start an online undergrad program getting my BA. I still have trouble with math and it is my worst subject. I did fine with Algebra but everything else are cruel to me. I need help on how to figure out this problem: A train travels 20 feet in 1/5 second. At this same
speed, how many feet will it travel in three seconds?

Thank you for anyone who can help walk me in solving this.
• Sep 1st 2012, 05:03 PM
skeeter
Re: I'm having a hard time solving problems on speed and time and need help?
Quote:

A train travels 20 feet in 1/5 second
... then it would travel 100 ft in 1 whole second, wouldn't it?
• Sep 2nd 2012, 02:36 AM
Notatroll
Re: I'm having a hard time solving problems on speed and time and need help?
Yeah, 20 feet in 1/5 sec, 100 feet in 1 sec, 300 feet in 3 sec.
• Sep 2nd 2012, 06:23 AM
skeeter
Re: I'm having a hard time solving problems on speed and time and need help?
Quote:

Originally Posted by Notatroll
Yeah, 20 feet in 1/5 sec, 100 feet in 1 sec, 300 feet in 3 sec.

For speed/time/distance problems, remember that $\displaystyle Speed = \frac{Distance}{Time}$
Now you want to know how far it will travel in 3 seconds. You can rearrange the original formula so that you have $\displaystyle Distance = Time * Speed$.