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neariah24
02.04.2022 •
Mathematics
Can anyone solve this correctly?
Solved
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Ответ:
180ft³
Step-by-step explanation:
We know that to find volume we do base × length × height, so just multiply 5 by 12 by 6, and you would get 360, but the pool is halfway filled, so the answer would be 180.
Ответ:
Let's say that train A travels at a speed n:
A=n
Let's also say that train B travels at a speed n-17:
B=n-17
Now, we both know that both trains will meet each other in 2 hours' time and that they were both once 210 miles apart, so let's form the equation:
2n + 2(n-17) = 210
And from here let's find out what speed n is...
2n + 2n - 34 = 210
4n - 34 = 210
4n = 244
n=244/4
Therefore, n=61.
This means that train A was travelling at 61 mph whilst train B was travelling at (61-17) mph which translates into 44 mph.
So there we have it:
Train A was travelling at 61 mph, which means that over a period of 2 hours it would have travelled a distance of 122 miles.
Train B was travelling at 44 mph, which means that over a period of 2 hours it would have travelled a distance of 88 miles.
{122 miles + 88 miles = 210 miles}