SOLUTION: A hyena spots a giraffe 1.4 miles away and begins to run toward it the giraffe
starts running away from the hyena just as a hyena begins running toward it. The
hyena can run a sp
Question 1123780: A hyena spots a giraffe 1.4 miles away and begins to run toward it the giraffe
starts running away from the hyena just as a hyena begins running toward it. The
hyena can run a speed of 40 mph and a giraffe can run at 32 mph. How long, in
minutes, will it take for the hyena to overtake the giraffe? Found 2 solutions by ankor@dixie-net.com, Edwin McCravy:Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website! A hyena spots a giraffe 1.4 miles away and begins to run toward it the giraffe starts running away from the hyena just as a hyena begins running toward it.
The hyena can run a speed of 40 mph and a giraffe can run at 32 mph how long, in minutes, will it take for the hyena to overtake the giraffe?
:
let t = time for h to overtake g in hrs
Write a distance equation, dist = speed * time
the h runs 1.4 mi further than the g
40t = 32t + 1.4
40t - 32t = 1.4
8t = 1.4
t = 1.4/8
t = .175 hrs, convert to min: .175(60) = 10.5 min Answer by Edwin McCravy(20055) (Show Source): You can put this solution on YOUR website!
Here is another way to look at APPROACH or SEPARATION problems:
RATE OF APPROACH (subtract the rates)
RATE OF SEPARATION (add the rates)
This is an APPROACH problem, so we subtract the rates
40mph - 32mph = 8 mph
DISTANCE = RATE∙TIME
Edwin