Mary had $25,000 to invest. She invested part of that amount at 3% annual interest and part at 5% annual interest for one year.
The amount of interest she earned for both investments was $1100. How much was invested at each rate?
1 answer:
(25000-f)(.03)+.05f=1100
750-.03f+.05f=1100
750+.02f=1100
.02f=350
f=$17500
So Mary invested $17500 @ 5% and 7500 at 3% to earn $1100 in interest.
You might be interested in
Answer:
30
Step-by-step explanation:
the answer is 8=8
Step-by-step explanation:
it just is
Answer:
i'm not sure but i think its 7,14,21
Step-by-step explanation:
7,14,21
Answer:
960
Step-by-step explanation:
9600/10∧1=960
Answer:
he works 7 hours each day