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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    Cory has 15 die-cast cars in his collection. Each year his collection increases by 20%. Roger has 40 cars in his collection. Each year he collects 1 additional car. Part C: After approximately how many years is the number of cars that Cory and Roger have the same? Justify your answer mathematically. (4 points)

  2. anonymous
    • one year ago
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    i will become a fan!

  3. anonymous
    • one year ago
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    hint . the first function is exponential, the second is linear

  4. anonymous
    • one year ago
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    since Roger is constantly adding one more and he already starts with 40, we know it will be y=x+40 Where 40 is the constant (he starts with this many) x is the rate at which he adds cars (he adds one so its 1x, but thats the same as x)

  5. anonymous
    • one year ago
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    thank you @jayzdd

  6. anonymous
    • one year ago
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    so then what is the answer?? @LiveLaughDie

  7. anonymous
    • one year ago
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    \[15(1.2^{1})\]\[=18\]

  8. anonymous
    • one year ago
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    yea

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spraguer (Moderator)
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