SOLUTION: On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran twice as fast as she walked and she covered 12 miles altogether,then how fast did she walk?
Algebra.Com
Question 268891: On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran twice as fast as she walked and she covered 12 miles altogether,then how fast did she walk?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes.
If she ran twice as fast as she walked and she covered 12 miles altogether,then how fast did she walk?
:
Let s = L's walking speed
then
2s = L's running speed
:
Write a dist equation: dist = time * speed
:
Walk dist + run dist = 12 mi
2s + .5(2s) = 12
2s + 1s = 12
3s = 12
s =
s = 4 mph is L's walking speed
;
;
Check solution in dist equation
2(4) + .5(8) = 12
RELATED QUESTIONS
walking and running. On Saturday morning, Lynn walked
for 2 hours and then ran for 30... (answered by stanbon)
On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran... (answered by prince_abubu)
On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran... (answered by Paul)
On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran... (answered by richwmiller)
On Saturday morning, lynn walked for 2 hours and then ran for 45 minutes. If she ran... (answered by math_helper)
On saturday morning, Pam walked for 2 hours and then ran for 30 minutes. If she ran twice (answered by richwmiller)
Could someone please help me on this...I am clueless.
On Saturday morning, Lynn walked
(answered by checkley71)
Lynn walked for 2 hours then ran for 30 minutes, if she ran twice as fast as she walked... (answered by Paul)
On Saturday morning John walked for 2 hours and then ran for 30 minutes. Is he ran twice (answered by jonvaliente)