A gold bar is similar in shape to a rectangular prism. A gold bar is approximately 7 in.
2 and 5/8 x 1 and 1/2 in.
If the value of gold is $1142 per ounce, about how much is one gold bar worth? Use the formula w≈ 11. 15n, where w is the weight in ounces and n= volume in cubic inches, to find the weight in ounces. Explain how you found your answer. \
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