ANSWERS: 1
  • in 30 mins steve moves 50*0.5 miles (25 miles) leaving 55 miles to be covered. this is time 0. then dave starts at 60 mph so the 2 move toward eachother at 50 + 60 mph = 110mph (80miles - 50mph*0.5h) / (50mph + 60mph) = 55 miles / 110 mph = 0.5 hours = 30 minutes. meet time is 30 minutes after Dave start. regards JakobA

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