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deff fn [24]
3 years ago
13

How do I find this expression?

Mathematics
1 answer:
Inga [223]3 years ago
8 0
You look at what the question says carefully and then you put that into the answer

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seeped of boad in standing water is 9 kmph and the seeped of the steam is 1.5 kmph a man rows to a plance at a distance of 105 k
Juliette [100K]

Correct question is;

Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

Answer:

Total time = 24 hours

Step-by-step explanation:

We are given;

Speed of a boat in standing water = 9 kmph

Speed of the stream = 1.5 kmph

Distance rowed by the man; d = 105 km

He now came back to his starting point.

Thus, we can say that;

Speed upstream; V_up = 9 - 1.5 = 7.5 kmph

Speed downstream; V_down = 9 + 1.5 = 10.5 kmph

Now, we know that;

time = distance/speed

Thus;

Total time = time taken upstream + time taken downstrem

Total time = (105/7.5) + (105/10.5)

Total time = 14 + 10

Total time = 24 hours

6 0
3 years ago
Please help me because I don't understand how to do it.:)
lana66690 [7]

Answer:

C  Yes, 75+ 2.5*60 = 225

Step-by-step explanation:

The charges for the electrician

1st hour = 75

Additional hours 60

We have 3 1/2 hours of labor

The first hour is 75 dollars

3 1/2 - 1 = 2 1/2

There will be 2 1/2 hours at the 60 dollar rate

75 + 60 * 2.5 =

75 + 150

225

8 0
3 years ago
What is the domain of f?
nalin [4]

When we ask you the domain of f, you need to search for a forbidden value ?

for example you can't divide by zero, so assume x was equal to seven.

Then you would have f(7) = 7 / 7-7 = 7 / 0 this would be impossible because you can't divide by zero, yes ?

Other than that everything works, so the answer is c : all real values of x such that x ≠ 7

Good Luck

4 0
2 years ago
A school club is raising money for a trip, and needs to reach $5,000. Their
lukranit [14]

Answer:

It's C.) It's the amount of money they raise each week.

Step-by-step explanation:

Hope this helps :))

3 0
3 years ago
Please answer the question I’ll give you brainliest
maria [59]
The missing able is 43 degrees
3 0
2 years ago
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