SOLUTION: Mary runs 100 meters in 20 seconds. How long will it take her to run 500 meters?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Mary runs 100 meters in 20 seconds. How long will it take her to run 500 meters?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 901137: Mary runs 100 meters in 20 seconds. How long will it take her to run 500 meters?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
It will take her 5 times as long
+5%2A20+=+100+
It will take her 100 sec