Ann travels from Town A to Town B in 3 hours. She then takes another hour to travel from Town B to Town C. The distance from Town A and Town B is 100 miles. The distances between Town B and Town C is 40 miles. What is Ann's average speed for the whole journey? *

  35 miles per hour

Step-by-step explanation:

Ann travels a total of (100 +40) = 140 miles in (3 +1) = 4 hours. Her average speed is the ratio of these:

  speed = distance/time

  speed = (140 miles)/(4 hours) = 35 miles/hour

70,000 + 6,000 + 800 + 30

step-by-step explanation:

1. minimum

2. 6400

3. eight

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