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Suppose an investment of $1,700 doubles in value every 10 years. How much is the investment worth after 20 years?
$34,000
$6,800
$4,100
$68,000

Respuesta :

After every ten years you have $3400, after 20 years is $6800

JeanaShupp

Answer: $6,800

Step-by-step explanation:

Given: The investment of $1,700 doubles in value every 10 years.

Here initial value A= 1700,

Multiplicative rate of change b=2

The exponential function for the given problem will be :-

[tex]y=Ab^x[/tex]

[tex]\\\Rightarrow y=1700(2)^t[/tex], where t is the time period of ever 10 years.

After 20 years (t=2) the amount will be = [tex]=1700(2)^2=\$\ 6,800[/tex]

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