SOLUTION: Please show me how to work with the following word problem: A train travels 20ft in .5sec. At the same speed, how many feets it travels in 3 seconds? Thank you.

Algebra ->  Linear-equations -> SOLUTION: Please show me how to work with the following word problem: A train travels 20ft in .5sec. At the same speed, how many feets it travels in 3 seconds? Thank you.      Log On


   

Question 276677: Please show me how to work with the following word problem:
A train travels 20ft in .5sec. At the same speed, how many feets it travels in 3 seconds?
Thank you.
Found 2 solutions by Earlsdon, richwmiller:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Try this:
20%2F5+=+x%2F3
x+=+3%2820%29%2F5
x+=+12feet.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
20/.5=x/3
40/1=x/3
120/3=x/3
x=120
or 20/.5=x/3
60=.5x
120=x