Respuesta :

Answer:

x=4

Step-by-step explanation:


Answer:

The value of x is 4%

Step-by-step explanation:

Given principal amount = 4000

                            Time   = 7 years

        Future amount      = 5,263.73

Rate of interest              = x

Formula for compound interest

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Now put the values in the formula

[tex]5,263.73=4000(1+\frac{x}{1})^{1\times 7}[/tex]

[tex]5,263.73=4000(1+\frac{x}{1})^{7}[/tex]

[tex]5,263.73=4000(1+x)^{7}[/tex]

[tex]\frac{5263.70}{4000}=(1+x)^7[/tex]

[tex]1.3159=(1+x)^7[/tex]

[tex](1.3159)^{\frac{1}{7}}=1+x[/tex]

[tex]x=(1.3159)^{\frac{1}{7}}-1[/tex]

x = 1.04 - 1

x = 0.04 or 4%

The value of x is 4%