Maxine borrowed $155 to buy a new bike. At the end of the year, she paid back the principal and $3.10 in interest. What was her simple interest rate?

Respuesta :

Answer:

The rate of simple interest is 2%

Step-by-step explanation:

The Principal (P)  amount borrowed = $155

Time = 1 year

The simple Interest after 1 year = $3.10

Let R = Rate of interest

Now, SIMPLE INTEREST = [tex]\frac{P \times R \times T}{100}[/tex]

⇒  [tex]3.10 = \frac{155 \times R \times 1}{100}[/tex]

or, R = (3.10 x 100) / 155  = 310 / 155 = 2

⇒  R = 2%

Hence, the rate of simple interest is 2%

Answer:

B) 35x + 15 = 155  

E) It will take 4 months to pay off the debt.

Hope this helps you!

Step-by-step explanation: