When signing the lease for her new apartment, tanya paid a security deposit that earned 4% simple annual interest. at the end of a year, the interest earned on the security deposit was $17.50. how much was the security deposit?

$437.50

Step-by-step explanation:

Let P represent the security deposit.

We have been given that when signing the lease for her new apartment, Tanya paid a security deposit that earned 4% simple annual interest. at the end of a year, the interest earned on the security deposit was $17.50.

, where,

I = Amount of interest,

P = Principal,

r = Annual interest rate in decimal form,

t = Time in years.

Therefore, the security deposit was $437.50.

0/5 is 0, 2/0 is undefined, and 0/0 is indeterminate.

step-by-step explanation:

hope my answer has you!

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9