Starting at the from the front wheel of Elephant's bike, their super-fast friend Bee flies directly towards Giraffe at a speed of 74 mph. As soon as Bee gets to Giraffe's front wheel, she turns around (instantaneously) and flies towards Elephant. When Bee gets to Elephant, she turns around and heads back to Giraffe, and so forth, flying back-and-forth until the two bicyclists meet.
Elephant and Giraffe are riding bikes! These two bicyclists are exactly 78 miles apart, and both are traveling at the exact same speed of 9 miles per hour (mph) riding directly toward each other.
Starting at the from the front wheel of Elephant's bike, their super-fast friend Bee flies directly towards Giraffe at a speed of 74 mph. As soon as Bee gets to Giraffe's front wheel, she turns around (instantaneously) and flies towards Elephant. When Bee gets to Elephant, she turns around and heads back to Giraffe, and so forth, flying back-and-forth until the two bicyclists meet.
How many miles will Bee have traveled by the time Elephant and Giraffe meet? (Round to the nearest hundredth of a mile)
Since elephant and giraffe traveling toward each other:
relative speed=speed of elephant+speed of giraffe= 9+9=18 mph
time taken to meet elephant and giraffe= distance/relative speed= 78/18=4.3333 hours.
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