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soldier1979 [14.2K]
3 years ago
5

I just need question a I don’t understand it and it would mean a lot if you can help me

Mathematics
2 answers:
Ronch [10]3 years ago
7 0

Answer:

rest in the journey for 1 hours

Step-by-step explanation:

velikii [3]3 years ago
7 0

Step-by-step explanation:

Speed of Jo walking for 30 mins =distance covered by Jo in 30 mins/ Time taken i.e 30mins

speed =  \frac{3km}{30mins}  =  \frac{3000m}{30mins}  =  \frac{100m}{min}

i.e 100 metres per min

He took rest for 10 mins .

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Solving Exponential Equations (lacking a common base)<br> 31^d=38
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Answer:

d = log 38/log31

d = 1.06

Step-by-step explanation:

31 ^ d = 38

Take log of both sides since the exponential equation have different base (always)

d log 31 = log 38

d = log 38 / log 31

d = 1.58 / 1.491

d = 1.06.

We can actually check to see if this is correct.

Substituting d = 1.06

31^ 1.06 = 38.092

(You see, that's approximately correct)

Keep learning, maths is fun!

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