Question

Price of Bottles8Find the unit rate ofthe price per bottle.76$12 bottles=Price ($)$[?]1 bottle32Give your answer asa decimal.10 1 2 3 4 5 6 7 8 9Number of Bottles

Answer 1

We need to find the price of 1 bottle. From the graph, 2 bottles cost $1. If x represents the cost of 1 bottle, the next proportion must be satisfied:

`\frac{1\text{ \$}}{2\text{ bottles}}=\frac{x\text{ \$}}{1\text{ bottle}}`

Solving for x:

`\begin{gathered} 1\cdot1=x\cdot2 \\ (1)/(2)=x \\ 0.5\text{ \$}=x \end{gathered}`