The value of gold is always changing. Last year, Max had a 0.2-ounce piece of gold appraised at $148.96. This year he had a 0.24-ounce
piece of gold appraised at $222.84. How much had the price of gold per ounce changed between Max's appraisals?
O A. $73.88
last year
w=0.2 ounces
price= $148.96
this year
w=0.24 ounces
price=$222.84
Let's find the price per ounce for the last year
[tex]\begin{gathered} w=0.2\text{ ounces} \\ \text{price}=148.96 \\ \text{price per ounce=}\frac{148.96}{0.2}=744.8\text{ per ounce} \\ \end{gathered}[/tex]Now for this year
[tex]\begin{gathered} w=0.24\text{ ounces} \\ \text{price}=222.84 \\ \text{the price per ounce is=}\frac{222.84}{0.24}=928.5\text{ per ounce} \end{gathered}[/tex]Now, the change
[tex]\begin{gathered} \text{change =final pric- initial price} \\ \text{change}=928.5\text{ \$/ounce -744.8 per ounce} \\ \text{change}=183.7\text{ \$/ounce} \end{gathered}[/tex]so the answer is $183.7
