Question

Mr. Gobin buys bottles of glue for his classroom. The bottles of glue were sold at a rate of 5 bottles for $2.40. Using this rate, what would be the cost for 32 bottles of glue?

Answer 1

5 bottles ------------------------------> $2.40

32 bottles------------------------------> $x

Using cross-multiplication:

$\begin{gathered} \frac{5}{32}=\frac{2.40}{x} \\ \text{solve for x:} \\ x=\frac{2.40\times32}{5} \\ x=15.36 \end{gathered}$