anonymous
  • anonymous
i need help!!!!!!!!!!!! will become fan
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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)
anonymous
  • anonymous
i will become a fan!
anonymous
  • anonymous
hint . the first function is exponential, the second is linear

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anonymous
  • anonymous
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)
anonymous
  • anonymous
thank you @jayzdd
anonymous
  • anonymous
so then what is the answer?? @LiveLaughDie
anonymous
  • anonymous
\[15(1.2^{1})\]\[=18\]
anonymous
  • anonymous
yea

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