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A commuter railway has 800 passengers a day and charges each one 2 dollars. For each 10 cents the fair is increased 10 fewer people will ride the train. What is the max income you get from the train?
Wiki User
∙ 15y ago
2500 dollars. This is reached with 500 passengers and fare of 5 dollars.
Wiki User
∙ 15y ago
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A commuter railway has 800 passengers a day and charges each one 2 dollars. For each 10 cents the fair is increased 10 fewer people will ride the train. What is the income you get from the train?
For $2 fare, 800 people will ride. For 10c more, at $2.10, only 790 will ride. For $2.20, only 780 will ride, and so on. To come up with the individual fare, then, use the point-slope formula: y - y1 = m(x - x1). Since m = 10/10 = 1, and the fare is $2 for each for 800 people, then y - 200 = x - 800, or y = x - 600. Thus, you get xy = x(x - 600) = x2 - 600x cents, or x2 - 6 dollars, depending on how much you charge.
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50 dollars is.
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24 dollars.
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400 dollars increased by 300% results in 1,600 dollars.
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Increase = 15 dollars. 15 dollars, as a percentage of 20 dollars = 15/20 * 100 = 75%
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