NO THOS IS NOT TRUESNBDJDN
Let the slower train's velocity be x-21
Let the faster train's velocity be x
We know that the approach speed is the sum of both speeds, so x+x -21= 2x-21.
The approach rate is given by Distance/time = 471/3 = 157mpH
x+x-21=157
2x=157+21
2x=178
x=89mph
The slower train is travelling 89-21 = 68mph
The faster train is travelling 89mph.
Answer:
false
Step-by-step explanation:
i just took the test and guessed on it to help u ( i got it right) :p
Answer:
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There's more than one way to combine them really
but an obvious one will be
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