Question

Michael borrows money from his uncle, who is charging him simple interest using the formula l = Prt. To figure out what the interest rate, r, is, Michael rearranges the formula to find r. His new formula is r equals

Answer 1

I = Prt
To find out what r is, you'll need to move P and t to the other side.
To get rid of multiplication, you divide.
I/Pt= Prt/Pt

Answer: I/Pt= r

Hope this helps! Let me know if you have any questions! :)