Multiple choice

Derek covered 120 miles by his car in 1.5 hour. What is his speed in feet per min?

  1. 7340 ft/min

  2. 7280 ft/min

  3. 7260 ft/min

  4. 7040 ft/min
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Speed = 120 miles / 1.5 hours = 80 miles per hour. Since 1 mile = 5280 feet and 1 hour = 60 minutes, speed = (80 * 5280) / 60 = 80 * 88 = 7040 ft/min.

AI explanation

First, find the car's speed in miles per hour using the formula speed equals distance divided by time, which gives 120/1.5 equals 80 mph. Convert this to miles per minute by dividing by 60, resulting in 80/60 or 4/3 miles per minute. Since 1 mile equals 5280 feet, the speed in feet per minute is 4/3 times 5280, which equals 7040 ft/min.

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