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Home > INT1 > Chapter 8 > Lesson 8.2.3 > Problem 8-119


Over a four-month period the price of an ounce of gold increased exponentially from $ to $. What was the monthly multiplier? What was the monthly percent increase? Write an equation that models this situation.

First, ask yourself these questions: What was the initial cost of an ounce of gold? The new price?
How long did it take for the gold to reach the new price?

If m is the monthly multiplier, then .

The monthly multiplier is , and the monthly percent increase is %.