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Reptile [31]
3 years ago
15

Please help with this

Mathematics
2 answers:
zysi [14]3 years ago
7 0
Crayon and then marker
Aleonysh [2.5K]3 years ago
4 0
Crayon first than marker
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A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods trai
Flauer [41]

The length of the goods train is 270 meters.

Given that, a goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds.

<h3>What is the distance formula with speed and time?</h3>

Speed is defined as the rate at which an object moves from one place to another in a given interval of time. It is a scalar quantity as it defines only the magnitude not the directions of an object moving. The S.I. unit of speed is m/s.

The speed of a moving object can be calculated as Speed = Distance / Time.

Now, to convert km/h to m/sec multiply the measure by 5/18.

That is, 72 × 5/18 = 20 m/sec

Let the length of the train be x metres.

So, then (x+250) / 26 = 20

⇒x+250=520

⇒x=270 meters

Therefore, the length of the goods train is 270 meters.

To learn more about the speed visit:

brainly.com/question/7359669.

#SPJ4

5 0
1 year ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!<br><br> Simplify.
astraxan [27]
The answer would be be B
~~~~~~~~~~~~~~~~~~~~~~~
You first factor out 54 and thats 3^2 * 6

(The factor of a # is what you multiply to get the answer)

You then do the same to x^9 and y ^7

After that you should have square root of [3^2 * 6x^8 * xy^6 * y]

When you combine this you will get 3x^4 y^3 sqre root [6xy]
4 0
3 years ago
A triangle is such that the largest angle is three times the smallest angle. Find the measure of each angle
sammy [17]
Let x represent the smallest angle. Then the largest is 3x, and the remaining angle is 180-4x. The problem statement tells us
.. 3x > 180 -4x > x
Adding 4x gives us
.. 7x > 180 > 5x
or
.. 36 > x > 180/7 = 25 5/7

The angles, smallest to largest, are
.. x, 4(45 -x), 3x
where 25 5/7 < x < 36

The angles could be, for example, any of ...
.. 26°, 76°, 78°
.. 30°, 60°, 90°
.. 32°, 52°, 96°
.. 35°, 40°, 105°
and an infinite number of other possibilities.
8 0
3 years ago
Solve to following inequality:<br> 2.40 + 2.20x &lt; 9<br> Many thanks<br> &lt;3
Alexxandr [17]

Answer:

4.60<9

Step-by-step explanation:

5 0
3 years ago
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NEED HELP ASAP
Archy [21]
I think its c your welcome

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3 years ago
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