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PilotLPTM [1.2K]

3 years ago

7

Two trains, Train A and Train B, weigh a total of 407 tons. Train A is heavier than Train B. The difference of their weight is 2

49 tons. What is the weight of each train

1 answer:

alexira [117]3 years ago

5 0

Answer:

A = 328 tons, B = 79 tons.

Step-by-step explanation:

A + B = 407

A - B = 249

Cancel b out of the equation, then add the rest.

2A = 656, A=328 tons

A + B = 407, B = 407-328

B = 79 tons

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Answer:

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And the best answer on this case would be:

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Step-by-step explanation:

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The margin of error for this confidence interval is given by:

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$ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635$

And the best answer on this case would be:

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Answer:

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Step-by-step explanation

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