Seudónimo Seudónimo

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 :

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

Otras preguntas

Name the two lines and the transversal that form each pair of angles

Why is India considered a subcontinent

How many counting numbers are between 30 and 65, not including 30 and 65?

which element can become stable by losing 1 electron

11 times 4 and 1 3rds

The point (3,7) is reflected in the y axis. What are the coordinates of the transformed point?

Susan invests twice as much money at 7.5% as she does at 6%. If her total interest after a year is $840 how much does she have invested at each rate?

Is 4xy + 2y = 9 linear ? If yes write the equation in standard form & determine the x & y interests

Can someone help solve, 3y+6=30-7y

express each number in fraction form before finding the inverse:7,10,1 3/4,