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Mandarinka [93]
3 years ago
14

Doug bought a new car for 25,

Mathematics
2 answers:
adoni [48]3 years ago
4 0

Answer:

It is b on the test

Step-by-step explanation:


pentagon [3]3 years ago
3 0
This is exponential decay which can be expressed as:

y=ab^t, y=final value, a=initial value, b=rate, t=time

In this case a=25000, r=(100-20)/100=0.8 so

y=25000(0.8^t), so in 4.5 years...

y=25000(0.8^4.5)

y≈$9158.93  (to nearest cent)
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