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babymother [125]
3 years ago
13

You develop an app to help students complete their homework. To earn money, you sell advertising space on the app’s main screen.

An advertiser pays you $25 per month and an additional $0.003 each time the app is opened.
Graph the linear equation that represents your monthly income y (in dollars) when the app is opened x times.
Mathematics
1 answer:
Oksanka [162]3 years ago
3 0

Answer:

y = .003x + 25

Step-by-step explanation:

y = .003x + 25

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A plane is traveling 600 miles. It takes the plane 5 hours against the wind and 4 hours with the wind. What is the speed of the
madam [21]

Answer: the speed of the plane in still air is 135 miles per hour

the speed of the wind is 15 miles per hour

Step-by-step explanation:

Let x represent the speed of the plane in still air

Let y represent the speed of the wind.

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Distance travelled = speed × time

It takes the plane 5 hours against the wind. This means that the total speed is (x-y) miles per hour. Therefore,

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It takes the plane 4 hours with the wind. This means that the total speed is (x+y) miles per hour. Therefore,

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Multiplying equation 1 by 4 and equation 2 by 5, it becomes

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Adding both equations

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Answer:

see explanation

Step-by-step explanation:

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