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satela [25.4K]
3 years ago
11

Tom took a trip 1020 miles.he traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph.how many ho

urs did the trip take
Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0
55t+285t=1020  combine like terms on left side

340t=1020  divide both sides by 340

t=3 hours

However that t is for the amount of time spent on the train and the same amount of time spend on the plane.  So the total time for the trip is 2 times t, which is:

6 hours.


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Answer:

The answer to your question is given below

Step-by-step explanation:

From the question given above, the mean score is 23.

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For Score 21:

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Mean deviation = | mean – Score |

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Step-by-step explanation:

Here is your answer

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