BEST ANSWER GETS BRAINLIEST
1 answer:
You might be interested in
Step-by-step explanation:
<u>Step 1: Find the correct option</u>
If you look at the attached photo, the option that fits those points is option B, therefore, the correct answer is B
Answer: Option B
<em>Look at the attachment:</em>
Given:
The rate of interest on three accounts are 7%, 8%, 9%.
She has twice as much money invested at 8% as she does in 7%.
She has three times as much at 9% as she has at 7%.
Total interest for the year is $150.
To find:
Amount invested on each rate.
Solution:
Suppose x be the amount invested at 7%. Then,
The amount invested at 8% = 2x
The amount invested at 9% = 3x
Total interest for the year is $150.
Multiplying both sides by 100, we get
Dividing both sides by 50, we get
So, the amount invested at 7% is .
The amount invested at 8% is
The amount invested at 9% is
Hence, the stockbroker invested $300 at 7%, $600 at 8%, and $900 at 9%.