Question 358579: A zebra can run30 mph. A tiger can run 50 mph.if the tiger has run 70 miles further than the zebra, how many minutes have they been running Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A zebra can run 30 mph.
A tiger can run 50 mph.
If the tiger has run 70 miles further than the zebra, how many minutes have
they been running
:
Let t = no. of hrs they have been running
:
Let z = no. of miles run by the zebra
then
(z+70) = no. of miles run by the tiger
:
Write two distance equations
30t = z
and
50t = (z+70)
Replace z with 30t
50t = 30t + 70
50t - 30t = 70
20t = 70
t =
t = 3.5 hrs
but they want it in minutes: 3.5 * 60 = 210 minutes
:
:
Check solution by finding the distances
3.5(50) = 175 mi
3.5(30) = 105 mi
-----------------
differs: 70 mi
