Margo borrows $900, agreeing to pay it back with 7% annual interest after 9 months. How much interest will she pay? Round your answer to the nearest cent, if necessary.

Respuesta :

Answer:

[tex]I=\$47.25[/tex]

Step-by-step explanation:

we know that

The simple interest formula is equal to

[tex]I=P(rt)[/tex]

where

I is the Final Interest Value

P is the amount of money borrowed

r is the rate of interest  

t is Number of Time Periods

in this problem we have

[tex]t=9/12\ years\\ P=\$900\\r=0.07[/tex]

substitute in the formula above

[tex]I=900(0.07(9/12))[/tex]

[tex]I=\$47.25[/tex]