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25 January, 05:00

Elena and her husband Marc both drive to work. Elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. Marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. Will the mileages for the two cars ever be equal? Explain.

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Answers (2)
  1. 25 January, 05:14
    0
    In 2.2 years they will be equal the same value.

    Step-by-step explanation:

    Let x = Number of years;

    Elena = 23000x + 15000

    Marc = 9000x + 46000

    Then if we set Marc equal to Elena:

    23000x + 15000 = 9000x + 46000

    or

    23000x - 9000x = 46000 - 15000

    14000x = 31000

    x = 31000 / 14000

    x = 2.2

    => In 2.2 years they will be equal the same value.

    => In 2 years 2 months and 17 days Marc and Elena Cars' mileage will be equal.
  2. 25 January, 05:21
    0
    Answer: Yes, It will be equal in 2.2 years

    Step-by-step explanation:

    Hi, to answer this question we have to write an equation for the mileage of Elena and Marc.

    Elena = 15,000 + 23,000x

    Marc = 46,000 + 9,000x

    Wheres x is the number of years

    So, if both have the same mileage

    15,000 + 23,000x = 46,000 + 9,000x

    Solving for x

    23,000x-9,000x = 46,000-15,000

    14,000x = 31,000

    x = 31,000/14,000

    x = 2.21 years
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