Question

PLZ HELP ME

In 2001, gold was priced at (0.5x + 300) dollars per ounce. Its price tripled in 2008 and then doubled in 2011. In 2016, its price dropped to 2 3 of the price in 2011.
• Write an expression for the price of gold per ounce in 2016.
• Explain how you found the expression.

Answer 1

`2x + 1200`

Explanation:

`.5x + 300 \\ 3(.5x + 300) = 1.5x + 900\\ 2(1.5x + 900) = 3x + 1800 \\ (2)/(3) (3x + 1800) = 2x + 1200`

Each new line represents the change stated in the question.