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lesantik [10]
2 years ago
7

A 1 km long train travelling at a speed of 60km/h enter a tunnel 1km long. What time will the train take to come out of the tunn

el fully.​
Mathematics
1 answer:
zysi [14]2 years ago
3 0

Answer:

2 minutes

Step-by-step explanation:

The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel.  Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:

Since distance = rate times time, time = distance / rate.  In this particular case we have:

                                              2 km

time = distance / rate = ------------------- = (1/30) hr

                                           60 km/hr

(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes

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<u><em>Answer:</em></u>

Open


<u><em>Explanation:</em></u>

An open equation is an equation that has variables and CAN be solved

<u>Example</u>: 2x = 4 ......> can be solved giving ......> x = 2

A false equation is one where both sides can NEVER be equal

<u>Example:</u> 15 = 2(3) + 1 ..........> 15 can never be equal to 7

A true equation is one having no variables and both sides are ALWAYS equal

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Now, the given equation is:

4y + 8 = 6y + 3

Let's try to solve is:

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Hope this helps :)

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2 years ago
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Vesna [10]

Answer:

Step-by-step explanation:

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3 years ago
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Volgvan

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Step-by-step explanation:

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Step-by-step explanation:

Step 1: Since it is asking how much each hat costed. We would divide.

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