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Mathematics, 05.07.2019 17:10 nataliaguadaluoupa25

Mike is 7.5 miles ahead of julia running at 5.5 miles per hour and julia is running at the speed of 6 miles per hour. how long does it take julia to catch mike.
the answer is 15 hours but i am unsure as to why, can someone explain?

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Mike is 7.5 miles ahead of julia running at 5.5 miles per hour and julia is running at the speed of...
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