Question

please help

in 1980, your car was worth $25,000, now in 2010 your car is worth $13,000. What is the annual decay rate?

Answer 1

What is the definition of rate?

Answer 2

If you dont know please tell me.

Answer 3

i dont know what it means

Answer 4

Rate is change of something over a time interval

Answer 5

usually its written like this\[\Delta Value /\Delta time\]

Answer 6

by how much did the car value went down?

Answer 7

is that what the rate is

Answer 8

thats the equation of rate yes

Answer 9

so what numbers do you plug in to solve it

Answer 10

\[\frac {d _{1}- d _{0}}{t _{1}-t _{0}}\]
d1= final value of car
d0= initial value of car

t1= final year
t0= initial year

Answer 11

thanks