April took out a $600 loan from the bank. At the end of 5 years, she pays back the principle, plus $60 simple interest. What was the annual interest rate?

April took out a loan of $600 and paid it back with simple interest of $60 after 5 years. The formula to calculate interest is  given the principal  and the time   and the interest rate  is . For this problem we have to find the interest rate   given  . To archive that , we can just solve the equation making the interest rate the subject of the formula as shown below,

I= Prt

=> r= I/Pt

=> r= 60/600x5 = 1/50

The interest rate is 1/50 or 0.02 as a decimal. The interest rate is 2% as a percentage.

if x decreases by 4 then y increases by 10

step-by-step explanation: