• anonymous
How do I make this into an exponential equation and then make a simplified version of that equation using this formula? So this question says I have 2 coins. Coin A has an initial value of $25 and that increases by 7% annualy. Coin B is initially worth $40 and increases 5% annualy. The formula I need to use is V(t)=P(1+r/n)^nt where the Value (V) after time (t) of the initial investment is calculated using a rate (r) each (n) intervals. So I need 4 equations. A function for both of the coins using the above formula and then simplified versions of each of those. Thanks, will give med
  • Stacey Warren - Expert
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  • chestercat
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  • anonymous
Forgot to mention, the ammount of time passed has been 45 years so I think t=45
  • campbell_st
well because both coins increase annually then n = 1 you just need to compound interest formula Coin A: P = 25, r = 0.07 (this is the percentage as a decimal) and t = 45 Coin B: P = 40, r = 0.05 t = 45 so substitute each set of values into your equation to find the value after 45 years

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