Question

i need help!!!!!!!!!!!! will become fan

Answer 1

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)

Answer 2

i will become a fan!

Answer 3

hint . the first function is exponential, the second is linear

Answer 4

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)

Answer 5

thank you @jayzdd

Answer 6

so then what is the answer?? @LiveLaughDie

Answer 7

\[15(1.2^{1})\]\[=18\]

Answer 8

yea