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← Interest Practice Write Equations - Visualizing Algebra

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

  1. We don't know the first amount, so that's x. And we don't know the second
  2. amount, so that's y. If we add the two amounts together, we get a total amount
  3. of $25,000, just like in our problem. For our second equation, we know our
  4. interest rate for this first amount was 7%. So I have 0.07, 7 hundredths times
  5. x. Our second amount gained 8% interest. So we have 8 hundredths times y, and
  6. our total interest was 1900, that was written in our problem. If you're able to
  7. write both of these equations that's exceptional. This is strong algebraic
  8. reasoning.