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Mathematics 20 Online
OpenStudy (anonymous):

medal and fan!

OpenStudy (yuliacosta111):

whats the question

OpenStudy (sarahjoy26):

What's the question?

OpenStudy (sarahjoy26):

@hockeybeast10

OpenStudy (anonymous):

do you even have a question

TheSmartOne (thesmartone):

I'm here :)

OpenStudy (anonymous):

hold on please

OpenStudy (yuliacosta111):

ok

OpenStudy (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 A: Write functions to represent Cory and Roger's collections throughout the years. (4 points) Part B: How many cars does Cory have after 6 years? How many does Roger have after the same number of years? (2 points) 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)

OpenStudy (yuliacosta111):

A is for cory, y=15(1.2)^x and for roger, y=x+40

TheSmartOne (thesmartone):

@Yuliacosta111 direct answers are not allowed

OpenStudy (yuliacosta111):

For B, just plug in 6 for x

OpenStudy (anonymous):

that was a direct answer?

OpenStudy (yuliacosta111):

for both equations. So for roger it would be 46, and for cory 44.78976

OpenStudy (anonymous):

which part are you doing

OpenStudy (yuliacosta111):

B

OpenStudy (anonymous):

what was a?

OpenStudy (yuliacosta111):

A is for cory, y=15(1.2)^x and for roger, y=x+40

OpenStudy (anonymous):

oh okay

OpenStudy (anonymous):

what is part c ??

OpenStudy (anonymous):

@Yuliacosta111

OpenStudy (anonymous):

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)

OpenStudy (anonymous):

@malcolmmcswain

OpenStudy (anonymous):

i dont understand the question.

OpenStudy (yuliacosta111):

hmm

OpenStudy (anonymous):

Would it be 1 ?

OpenStudy (anonymous):

you still there @Yuliacosta111

OpenStudy (yuliacosta111):

idk that one

OpenStudy (yuliacosta111):

you in flvs?

OpenStudy (anonymous):

you still there @Yuliacosta111

OpenStudy (anonymous):

C is 4

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