Jones covered a distance of 50 miles on his first trip. On a later trip he traveled 300 miles while going three times as fast. His new time compared with the old time was:(a) three times as much, (b) twice as much, (c) the same, (d) half as much, (e) a third as much

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Answer:
Answer:The answer is b. But you asked for the thought process so...Step-by-step explanation:Let speed of the 1st trip x miles / hr. and speed of the 2nd trip 3x / hr. We know that Speed = Distance/Time. Or, Time = Distance/Speed. So, the time taken to cover a distance of 50 miles on his first trip = 50/x hr. And the time taken to cover a distance of 300 miles on his later trip = 300/3x hr. = 100/x hr. So we can clearly see that his new time compared with the old time was: twice as much.Have a great day :)
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general 11 months ago 7275