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Nat2105 [25]
2 years ago
6

Two trains, Train A and Train B weigh a total of 349 tons. Train A is heavier than Train B. The difference in their weights is 2

49 tons. What is the weight of each train?
Mathematics
1 answer:
Ainat [17]2 years ago
3 0

Answer:

Train A = 299 tons Train B = 50 tons

Step-by-step explanation:
Train A = x

Train B = y

x+y = 349

x= y +249

Plug in one equation into another

y+249+y= 349

Simplify

2y+249=349

Subtract 249 from both sides

2y=100

Divide both sides by 2

y=50

Plug it into the x equation to solve for x

x+50=349

-50 from both sides

x=299

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3x-2y=-1. <br> Y=-x+3. <br> Is (1,2) a solution do the system?
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Answer:

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<h3>Answer:  (4,2)</h3>

==============================================================

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Reflecting over y = 1 lands the point on (0,2) because we move 1 unit up to arrive at the line of reflection, and then we keep going one more unit (same direction) to complete the full reflection transformation. I'll call this point P.

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All of this is shown in the diagram below.

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