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Alik [6]
2 years ago
8

A traveler traveled for 6 hours and covered a distance of 520 km. He traveled the first 260 km by car, and the rest of the way b

y train. The average speed of the car is twice the average speed of the train. What is the average speed of the train?
Mathematics
1 answer:
Shkiper50 [21]2 years ago
7 0

Answer:

57.78 km/hr

Step-by-step explanation:

Total time taken, t = 6 hours

Total distance covered, d = 520 km

Distance by car = 260

Distance by train = 520 - 260 = 260 km

Train speed = x

Car speed = 2x

Average speed speed = 3x /2

Speed = distance / time

1.5x = 520 / 6

9x = 520

x = 520 / 9

x = 57.777

Average speed of train = 57.78 km/hr

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How to find a,b and c
alina1380 [7]
33/54 = 44/(a+44)
33(a+44) = 44*54
33a+ 1452 =  2376
33a = 924
    a = 28

c = sqrt (33^2 + 44^2)
c = sqrt(1089 + 1936)
c = sqrt(3025)
c = 55

33/54 = 55/(b+55)
33(b+55) = 55*54
33b+ 1815 =  2970
33b = 1155
    b = 35

answer
a = 28, b = 35, c = 55
3 0
3 years ago
If 4/5 – 3/10 = x + 11/2, find the value of<br>X.​
ehidna [41]

Answer:

x = 85/60 or 17/12

Step-by-step explanation:

4/5 - 3/10 = x + 11/12

=> 8/10 - 3/10 = x + 11/12

=> 5/10 = x - 11/12

=> x - 11/12 = 5/10

=> x = 5/10 + 11/12

=> x = 5 * 6 / 10 * 6 + 11 * 5 / 12 * 5

=> x = 30 / 60 + 55/60

=> x= 85/60

If my answer helped, kindly mark me as the brainleist !!

Thank You!!

7 0
3 years ago
Read 2 more answers
Factorise 2c power of 2-12c+6cd​
irakobra [83]

Answer:

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Step-by-step explanation:

To factorize the equation 2c*2 -12c+6cd, put the common term 2c out and you would get:

2c*2 -12c+6cd

= 4c - 12c + 6cd

= -8c + 6cd

= 2c*(-4 + 3d)

This is the simpliest form you can get

Hope it helped :3

5 0
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Answer:

C.

Step-by-step explanation:

1/16 = x/48

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424 miles

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