## ← Interest Practice Write Equations - Visualizing Algebra

• 2 Followers
• 8 Lines

### Get Embed Code x Embed video Use the following code to embed this video. See our usage guide for more details on embedding. Paste this in your document somewhere (closest to the closing body tag is preferable): ```<script type="text/javascript" src='https://amara.org/embedder-iframe'></script> ``` Paste this inside your HTML body, where you want to include the widget: ```<div class="amara-embed" data-url="http://www.youtube.com/watch?v=B1fsgReHHvQ" data-team="udacity"></div> ``` 1 Language

Showing Revision 2 created 05/24/2016 by Udacity Robot.

1. Here's another problem involving interest. This time you invest money at 7% and
2. 8%. You invested a total of \$25,000 and your yearly interest was 1,900. How much
3. money did you invest at each rate? To get started solving this problem let's
4. first come up with some equations. We'll let x be the amount of money we
5. invested at 7% and y be the amount of money we invested at 8%. Using these
6. variables write two equations for representing this problem. Use the ideas of
7. amount, and amount, plus the total amount. And interest plus interest should be
8. total interest. And make sure to use those variables. Good luck.