Hillary has $75,000.00 to invest in a CD (Certificate of Deposit). The CD earns 4 1/2 %. How long will she have to wait until she has $95,250.00? Round to the nearest year.

Respuesta :

Answer:

[tex]t=6\ years[/tex]

Step-by-step explanation:

we know that

The simple interest formula is equal to

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

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

[tex]t=?\ years\\ P=\$75,000.00\\ A=\$95,250.00\\r=4\frac{1}{2}\%=4.5\%=4.5/100=0.045[/tex]

substitute in the formula above

[tex]95,250.00=75,000.00(1+0.045t)[/tex]

solve for t

[tex]1.27=1+0.045t[/tex]

[tex]0.045t=1.27-1[/tex]

[tex]0.045t=0.27[/tex]

[tex]t=6\ years[/tex]