The sum of the speeds of two trains is 723.1 miles per hour. If the speed of the first train is 10.9 mph faster than that of the

Question

3 years ago

11

second train, find the speeds of each.
What is the speed of the first train?

1 answer:

Komok [63] · Answer 1 · 2022-05-18T01:03:03+03:00

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Answer:

367 miles per hour

Step-by-step explanation:

The speed of the faster train is half the total plus half the difference:

s1 = (723.1 +10.9)/2 = 367 . . . . miles per hour

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<em>Check</em>

The slower train is 367-10.9 = 356.1, and the total is 723.1 mph, as required.

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If you want an equation, you can let x represent the faster speed. Then the total is ...

x + (x -10.9) = 723.1

2x = 723.1 +10.9

x = (723.1 +10.9)/2 = 367