Question

Jesse needs to buy tablecloths for an event. At the local store he can buy 6 tableclothsfor $31.50. Online, he can buy 7 tablecloths for $32.20.If Jesse buys 15 tablecloths from the source with the lower cost per tablecloth, howmuch money will he save in total?

Answer 1

Given

Local store

$\begin{gathered} 6tablecloths=\text{ \ 31.50} \\ 15tablecloths\text{ = x} \\ \\ \frac{6}{15}=\frac{31.50}{x} \\ \\ Solve\text{ for x} \\ x=78.75 \\ \\ 15tableclothes=\text{ \ }78.75 \end{gathered}$

Online

$\begin{gathered} 7talbeclothes\text{ =\ 32.20} \\ 15tablescloths\text{ =y} \\ \\ \frac{7}{15}=\frac{32.20}{y} \\ solve\text{ for y} \\ \\ y=69 \\ \\ 15\text{ table clothes =\ 69} \end{gathered}$

Now their diffenrence

$78.75-69=9.75$The final answer

He save $9.75 in total

$\text{ \ 9.75}$