Question

George is a salesperson in a jewelry store and earns $100 per week, plus 10% of his weekly sales. If George makes $425 in one week , what are his sales for that week? $5,250$4,250$4,000$3,250

Answer 1

Since George earns $100 per week plus 10% of his weekly sales

Assume that his weekly sales are $x

Then he earns 100 + 10% of x

Since he makes $425 in a week, then

`\begin{gathered} 100+(10)/(100)* x=425 \\ 100+0.1x=425 \end{gathered}`

Subtract 100 from both sides

`\begin{gathered} 100-100+0.1x=425-100 \\ 0.1x=325 \end{gathered}`

Divide both sides by 0.1

`\begin{gathered} (0.1x)/(0.1)=(325)/(0.1) \\ x=3250 \end{gathered}`

His sales for that week are $3250

The answer is D