Jake's dad can drive the distance from their house to the water park in 30 minutes. He spends half that journey driving 28 miles per hour and the other half driving 60 miles per hour on the highway. If Jake can bike 11 miles per hour, how many hours will it take him to bike to the water park?
First find how long half Jake's dad's trip is: 30 minutes / 2 = <<30/2=15>>15 minutes
Then convert the minutes to hours: 15 minutes * 1 hour/60 minutes = .25 hours
Now find how far Jake's dad travels at 28 miles per hour: .25 hours * 28 miles per hour = <<.25*28=7>>7 miles
Then find how far Jake's dad travels at 60 miles per hour: .25 hours * 60 miles per hour = <<.25*60=15>>15 miles
Now add those distances to find the total distance to the water park: 7 miles + 15 miles = <<7+15=22>>22 miles
Now divide the total distance by Jake's speed to find how long it takes him: 22 miles / 11 miles/hour = <<22/11=2>>2 hours
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