Question

Victoria Lopez works at a department store. She ispaid on commission. She receives 10% of her first$800 in sales and 20% of the balance of her sales.Last week she earned $1,150. What was the totalvalue of the furniture she sold?

Answer 1

we have the following:

`0.1\cdot800+0.2\cdot x=1150`

solving for x:

`\begin{gathered} 80+0.2x=1150 \\ 0.2x=1150-80 \\ x=(1070)/(0.2) \\ x=5350 \end{gathered}`

therefore, the answer is the sales are $5350