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Sladkaya [172]
3 years ago
6

Ben was walking in Manhattan at a constant speed. He went along 5th avenue from 4th to 98th street. At 3:00 he was on 15th stree

t, and at 4:30 he was on 45th street. When did he start and when did he finish his walk? Write an equation which could tell on what street N he was T minutes after he started to walk.
Mathematics
1 answer:
muminat3 years ago
3 0

Answer: The starting time is 2:27 and finishing time is 7:09.    


Step-by-step explanation: It is given that Ben started from 4th street and he finished at 98th street.

Also, at 3:00, he was on 15th street and at 4:30, he was on 45th street.

That is, time taken to cover (45-15), i.e., 30 streets is 90 minutes,                           so the time taken to cover 1 street is 3 minutes.

Therefore, Ben covers distance from one street to second in 3 minutes. Since he started from 4th street, and there are 11 streets to cover between 4 and 15, so Ben's starting time was (3:00 - 3×11 min) = 2:27.

And his finishing time was (4:30 + 3×53 min) = 7:09.

Again, the equation that tells us on what street 'N' he was after time 'T' of his starting can be written as

N=4+\dfrac{T}{3.}

Thus, the starting and finishing time was 2:27 and 7:09 respectively.



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A shoe manufacturer was investigating the weights of men's soccer cleats. He felt that the weight of these cleats was less than
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The Alternative  Hypothesis  is  H_a =  \mu < 10

The test statistic is  mathematically represented as

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Substituting values

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 The conclusion is that the researcher was correct

 

 

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