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Adam and Beth arrive to work at the same time. Adam traveled 5 miles at 30 miles per hour (mph), 15 miles at 45 mph, and 30 miles at 60 mph. Beth traveled 12 miles at 35 mph and 35 miles at 55 mph. Adam had no stops, but Beth was stopped by a train. How many minutes did Beth have to stop for the train, rounding to the nearest whole number?

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linneakathleen

Answer:

Distance for Beth = Distance for adam+5 = 20+5 = 25 miles

Time taken byBeth = Time taken by adam + (1/3 hour) = 1/2+1/3 = 5/6

Speed of Beth = D/T = 25/(5/6) = 25*6/5 = 30 miles per hour

Step-by-step explanation:

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