vaidehiacharya76 vaidehiacharya76
  • 12-06-2022
  • Mathematics
contestada

Petra invests $10 800. After 4 years she has earned $3240 in interest. At what amount rate of interest did she invest her money?

Respuesta :

foj227175
foj227175 foj227175
  • 12-06-2022

Answer:

7.5%

Step-by-step explanation:

Let, rate be r%

Now,

interest=prt/100

3240= 10800×4×r/100

r=3240×100/10800×4

r=7.5%

Answer Link

Otras preguntas

The Holy Spirit cannot help us in our new life in Christ. True or False
A rapid increase in the money supply may lead to a(n):
Considering the Constitutional right of privacy, do you think it is proper for a State to use its police power and promote morals among its citizens?
In the equation 1,500(B-15)=3,000, B equals
Evaluate 7 + (-3x2) for x = 0. -2 0 4 7
which polynomial is a perfect square trinomal x^2 -6x +9 b) x^2 -2x +4 c) x^2 +5x +10 d) x^2 +4x +16
How has the two party system shaped American politics between 1790 and 1860? In constructing your essay, point out the 3 different “party systems” as well as th
what is 5×5 equal please what the answer
What kind of fiction nonfiction or fantasy is this
what is the distance between earth and sun? state ur answer in lightyears