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AURORKA [14]
3 years ago
11

Sam and Liam raced each other up and then down the hill. Sam's average speed up the hill was 1 mph, and his average speed down w

as 9 mph. Liam ran up the hill and down the hill with the same speed, 2 mph. If the path from the bottom to the top of the hill is 1 mile long, how much time did it take each of the boys to finish - and who was the winner?
Mathematics
1 answer:
Furkat [3]3 years ago
3 0

Answer:

Sam's time was 1 hour and 6.66 minutes (or 1 and 1/9 hours)

Liam's time was was 1 hour

So in conclusion, Liam was faster

Step-by-step explanation:

We got Sam's time by 1/1 because Sam was walking 1 mph and the length to reach the top of the hill is 1 mile. So it would take Sam 1 hour to walk 1 mile. Walking down the hill Sam's speed was 9 mph. So the equation would be 1/9. So you would get 1/9. 1/9 of 60 is 6.66 repeating.

For Liam it is pretty simple. Since he is going up the hill at 2 mph and the length of the bottom of the hill to the top is 1 mile, it would be 30 minutes. Repeat this for the top to the bottom and in total it would be 1 hour.

Hope this helps

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3 years ago
A pool measures 12.3 feet by 16.6 feet. If the longer wall of the pool has a diagonal of 17.8 feet, what is the volume of the po
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Answer:

1310.8 feet^3 to nearest tenth.

Step-by-step explanation:

To find the volume we need to find the depth.

The length of the diagonal helps us to do this. We apply the Pythagoras theorem to the triangle formed by the length, the diagonal and the depth (d):

17.8^2 = d^2 + 16.6^2

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=  1310.8 feet^3.


5 0
3 years ago
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Likurg_2 [28]

Answer:

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Step-by-step explanation:

Look at the picture.

Use the Pythagorean theorem:

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6 0
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Ilia_Sergeevich [38]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
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Hope this helps :)
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3 years ago
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