2 years ago

Pls help me with this one 1,2,3,4

Mathematics

2 answers:

Grace [21]2 years ago

5 0

Answer:

Option 2.

Explanation:

That method is the most random in order to decide what students should take the survey.

Anon25 [30]2 years ago

4 0

The answer is option 2.

Hope this helps!

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John has a boat that will travel at the rate of 15 kph in still water. He can go upstream for 35 km in the same time it takes to

Otrada [13]

Answer:

The boat traveling at 24 kph when John goes downstream.

Step-by-step explanation:

We are given the following in the question:

John has a boat that will travel at the rate of 15 kph in still water.

Let x be the speed of the current.

Speed of boat in upstream

$(15-x)\text{ kph}$

Speed of water in downstream

$(15+x)\text{ kph}$

Relation:

$\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

We have to find the speed of boat in downstream.

Time to travel upstream for 35 km = Time to travel 140 km downstream

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Thus, speed of current is 9 kph.

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Thus, the boat traveling at 24 kph when John goes downstream.

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3 years ago

Pls help me with this one 1,2,3,4​

Pls help me with this one 1,2,3,4