You put $400 in an account. The account earns $18 simple interest in 9 months. What is the annual interest rate?

Question

03-02-2017
Mathematics

contestada

You put $400 in an account. The account earns $18 simple interest in 9 months. What is the annual interest rate?

Respuesta :

Otras preguntas

A jacket cost $40 at the store. max pays only .7 of the price because his father works at the store. evan has a coupon for $10 off. explain who will pay less fo

Human environment interaction

As a result of a stroke, 75-year-old mrs. yee suffered brain damage. while she is no longer able to speak, she can understand what is being said to her. mrs. ye

Before the Civil War, the South's economy relied heavily on slave labor. After the Civil War ended slavery, slave labor was mostly replaced by

Given the following images, choose the one that most likely represents a B-class star. A B C D

An indirect proof assumes:

Which geologic feature is composed of the youngest crustal bedrock?

Mike is 11 years old. Jim is twice as old as Mike. When Jim is 50 years old, how old will Mike be?

25 POINTS!!!!!!!!! From "Advertising." Encyclopedia Britannica. Encyclopedia Britannica Online School Edition. Encyclopedia Britannica, Inc., 2013. Web. 9 Jan.

apologiabiology apologiabiology · Answer 1 · 2017-02-03T04:36:34+01:00

apologiabiology apologiabiology

03-02-2017

I=PRT
Interest=Principal times Rate time Time
time is in years and rate is in decimal

I=18
P=400
T= 9/12=3/4=0.75
R=?

18=400*R*0.75
18=300*R
divide both sides by 300
0.06=R

rate is 6%

Answer Link