Question 159789
X=time it takes to travel 175 km/h from fire to pond
Convert minutes into hours

30minutes/60minutes/hour=.5 hour

.5-X=time it takes to travel at 115km/h from pond to fire

Distance traveled is speed*time
175x=115(.5-X)

175X=57.5-115X

Add 115X to both sides

290X=57.5

X=.198 hour

.5-.198 =.301 hour is the answer

check

175(.198)=115(.301)

34.6=34.6