SOLUTION: A women invested some money in a credit union paying 5% annual simple interest and three times as much in a money market account paying 4.25% annual simple interest. If she earned

Question 993310: A women invested some money in a credit union paying 5% annual simple interest and three times as much in a money market account paying 4.25% annual simple interest. If she earned $1,420 interest in one year, how much did she invest in each account?
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
Let's call the money at 5% x. She earned:
0.5x+0.425(3x)= 1,420
Multiply:
0.5x+1.275x= 1,420
Add:
1.775x= 1,420
Divide both sides by 1.775
x= 800 She has 800 at 5% and 3�800= 2,400 at 4.25%
Proof:
(800�0.5)+(2,400�0.425)=
400+1,020= 1,420 We have the correct answer.

RELATED QUESTIONS
Please help me I've been trying to undestand this but I can't seem to get it. A woman (answered by solver91311)

A woman invested some money in a credit union paying 5 percent annual simple interest and (answered by addingup)

An investor earned a total of $101 at the end of one year by investing $1,050 in a money... (answered by checkley77)

Brandon invested $20 000. He invested part of the money in a term deposit paying 4%... (answered by ikleyn,greenestamps)

erica invests some money in three different accounts. she put some of it in a CD earning... (answered by ikleyn)

In investing $5,900 of a couple's money, a financial planner put some of it into a... (answered by addingup)

In investing $5,900 of a couple's money, a financial planner put some of it into a... (answered by ikleyn,greenestamps)

In investing $5,650 of a couple's money, a financial planner put some of it into a... (answered by CPhill)

Last year Elisabeth invested a quarter of her money in a credit union paying 3% interest, (answered by richwmiller)