Respuesta :

Answer:

6 years

Step-by-step explanation:

Simple Interest Formula

A = P(1 + rt)

where:

  • A = final amount
  • P = principal
  • r = interest rate (in decimal form)
  • t = time (in years)

Given:

  • A = $4,040
  • P = $2,525
  • r = 10% = 0.1

Substitute the given values into the formula and solve for t:

[tex]\implies \sf A = P(1 + rt)[/tex]

[tex]\implies \sf 4040 = 2525(1 + 0.1t)[/tex]

[tex]\implies \sf \dfrac{4040}{2525} = \dfrac{2525(1 + 0.1t)}{2525}[/tex]

[tex]\implies \sf 1.6=1 + 0.1t[/tex]

[tex]\implies \sf 1.6-1=1 + 0.1t-1[/tex]

[tex]\implies \sf 0.6=0.1t[/tex]

[tex]\implies \sf 0.1t=0.6[/tex]

[tex]\implies \sf \dfrac{0.1t}{0.1}=\dfrac{0.6}{0.1}[/tex]

[tex]\implies \sf t=6[/tex]

Therefore, it will take 6 years for a sum of $2,525 to grow to $4,040 if it earns 10% simple interest per annum.

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Answer: about 6 years

Step-by-step explanation: