Mario bought a new car for $25,000. The value of the car is decreasing at a rate of 12.5% every year. After 3
years, the value of the car will be about how much? Round to the nearest whole dollar.
$22,748
$16,748
$18, 246
$35,596

Respuesta :

Answer:

$16,748

Step-by-step explanation:

we know that

The equation of a exponential decay function is equal to

[tex]y=a(1-r)^x[/tex]

where

y is the value of the car

x is the number of years

a is the initial value

r is the rate of change

In this problem we have

[tex]a=\$25,000\\r=12.5\%=12.5/100=0.125[/tex]

substitute

[tex]y=25,000(1-0.125)^x[/tex]

[tex]y=25,000(0.875)^x[/tex]

For x=3 years

substitute

[tex]y=25,000(0.875)^3=\$16,748[/tex]