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ivann1987 [24]
2 years ago
14

HELP PLEASE I need to find out this answer

Mathematics
1 answer:
wlad13 [49]2 years ago
5 0

Answer:

B

Step-by-step explanation:

The solution to the system is at the point of intersection of the 2 graphs.

The graphs intersect at 1 point

Then there is 1 real solution

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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
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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.

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2 years ago
Henry bought 2 kilograms of chicken for a family dinner. After, only 61.5 grams were left. How much chicken was eaten, in kilogr
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He still has 1938.5 kilograms of chicken left. Hope it helped.
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3 years ago
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3 years ago
Need help with R3, R4, S5​
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Answer:

R3 Theorem: If parallel lines are cut by a transversal, then alternate interior angles are congruent.

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Step-by-step explanation:

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