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Viktor [21]
2 years ago
7

three people alice , ben , calvin, are conversing at a taxi stand since taxis are the only ride service in this town. although t

hey havent met before ,they realize that all are going the same route to get desire destination. alice destination is 20 miles away , ben destination 30 miles away and calvins destination 40 miles away , the taxi costs 2 dollars per mile with tip included regardless of the number of passengers. how much should each person pay if the three share a cab to their respective destination
Mathematics
1 answer:
elena-s [515]2 years ago
3 0

Answer:

Alice will have to pay $13.33

Ben will have to pay $23.33

Kelvin will have to pay $43.33

Step-by-step explanation:

Given that

Alice destination is 20 miles away

Ben destination is 30 miles away

Calvin destination is 40 miles away.

For a mile, taxi costs 2 dollars.

To find:

How much each person has to pay if they share the same taxi to their respective destinations?

Solution:

For the first 20 miles, the taxi will be shared by all 3 of them.

Charges for 20 miles = 20 \times 2 = $40

This $40 will be shared among all 3.

Each will pay = \frac{40}{3} = \$13.33

Charges for Alice = $13.33

Charges for Ben = $13.33

Charges for Calvin = $13.33

For the next 10 miles, the taxi will be shared by Ben and Calvin.

Charges for 10 miles = 10 \times 2 = $20

This $20 will be shared between Ben and Calvin.

Each will pay = \frac{20}{2} = \$10

Charges for Alice = $13.33

Charges for Ben = $13.33 + 10 = $23.33

Charges for Calvin = $13.33 + 10 = $23.33

For the next 10 miles, Calvin travels alone.

Charges for 10 miles = 10 \times 2 = $20

This $20 will be paid by Calvin alone.

Charges for Alice = $13.33

Charges for Ben = $23.33

Charges for Calvin = $23.33 + 20 = $43.33

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Answer:

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Both solutions are valid.

Explanation:

1. First assumption is that the shape of the fence is <u>rectangular</u>.

2. Second, assum the length parallel to the wall measure y feet, so the other two lengths, y, together with x will add up 100 feet

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3. The, the area of the fence will be:

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4. Now you have two equation with two variables which you can solveL

  • Solve for y in the first equation: y = 100 - 2x
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5. Solve the last equation by completing squares:

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  • Divide both sides by - 1: 2x² - 100x = - 600
  • Divide both sides by 2: x² - 50x = -300
  • Add the sequare of the half of 50 to both sides: x² - 50x + 625 = 325
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Both values are valid,

If x = 43 , then y = 600/43 = 14

If x = 7, then y = 600/7 = 86

Thus, the lenght and width of the fence may be:

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2 years ago
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x^4 + 6x^3 + 33x^2 + 150x + 200

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Answer:

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Step-by-step explanation:

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