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Ede4ka [16]
3 years ago
10

Two trains, train a and train b, weigh a total 197. Train A is heavier than train b. The difference of their weights is 77 tons.

What is the weight of each train
Mathematics
1 answer:
Bingel [31]3 years ago
5 0

Answer:

The train A weighs 137 tons and train B weighs 60 tons.

Step-by-step explanation:

We are given the following in the question:

There are two trains.

Train A and Train B.

Let x tons be the weight of train A and y tons be the weight of train B.

Total weight = 197 tons.

Thus, we can write the equation:

x + y = 197

Train A is heavier than train B.

The difference of their weights is 77 tons.

Thus, we can write the equation:

x-y=77

Solving the two equations, we get,

2x = 274\\\Rightarrow x = 137\\\Rightarrow y = 197-137 = 60

Thus, the train A weighs 137 tons and train B weighs 60 tons.

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Given f(x) and g(x) as real functions, the composite function (f\circ g)(x) is defined as:

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