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Anettt [7]
3 years ago
10

A car takes 4 hours to cover a certain distance, travelling at a speed of 120 km/h. How long will the car take if it travels at

a speed of 80km/h?
Mathematics
2 answers:
photoshop1234 [79]3 years ago
5 0
So the answer will be like
Let the time taken be x
4:120::x:80
120x= 80*4
x = 80*4/120
x=8/3
x= 2 2/3
muminat3 years ago
4 0

Answer:

3/8 hours

Step-by-step explanation:

distance=speed/time=120/4=30km

time=distance/speed=30/80=3/8

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I don't know how to solve this. help please?
iragen [17]

Answer:

51   74

Step-by-step explanation:

x = smaller

x +23 = larger

added together   (x   + x+23)    equal to 28 less than 3x      = 3x-28

x    + x+23  = 3x-28      subtract 2x from both sides of the equation

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 51 = x      then the larger   =  51 + 23 = 74

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2 years ago
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Evaluate u + xy, for u = 20, x = 9, and y = 8
elena-14-01-66 [18.8K]
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