How much does the paper weigh if one cubic inch weighs 1.8 ounces?

Answer
8.5 ounces
Step-by-step explanation
The weight of the paperweight is proportional to its volume. 1 cubic inch weighs 1.8 ounces. To find how many ounces, x, 4.7 cubic inches weigh, we can use the next proportion:
[tex]\frac{1\text{ cubic in}}{4.7\text{ cubic in}}=\frac{1.8\text{ ounces}}{x\text{ ounces}}[/tex]Solving for x:
[tex]\begin{gathered} 1\cdot x=1.8\operatorname{\cdot}4.7 \\ x=8.5\text{ ounces} \end{gathered}[/tex]