SOLUTION: earl can run around the school in 60 seconds. ellen starts at the same time but goes in the opposite direction and keeps passing earl every 20 seconds. the number of seconds it tak
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: earl can run around the school in 60 seconds. ellen starts at the same time but goes in the opposite direction and keeps passing earl every 20 seconds. the number of seconds it tak
Log On
Question 288579: earl can run around the school in 60 seconds. ellen starts at the same time but goes in the opposite direction and keeps passing earl every 20 seconds. the number of seconds it takes ellen to run around the school is
a 30 b 40 c 45 d 60 e 90 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! earl can run around the school in 60 seconds. ellen starts at the same time but goes in the opposite direction and keeps passing earl every 20 seconds. the number of seconds it takes ellen to run around the school is ?
-------------------
In 20 seconds earl has gone 1/3 the distance around the school
while ellen has gone 2/3 the distance around the school.
----
Equation
Let x be time for ellen to go round the school
(2/3)x = 20 seconds
x = 30 seconds
--------------------------
Cheers,
Stan H.
-----------
a 30 b 40 c 45 d 60 e 90
--------------------------------
(