Question

Tj earns a 20% commission on all sales plus a base salary of 40k. his total income last year was at least 70k. which inequality can be used to calculate the minimum of Tj sales.

Answer 1

Let x be the all sale for individual.

Determine the expression for total income of individual.

`(20)/(100)x+40000=0.2x+40000`

The total income was at least 70000. So last year income is 70000 or more than 70000.

Setermine the inequality for the sales.

`\begin{gathered} 0.2x+40000-40000\ge70000-40000 \\ (0.2x)/(0.2)\ge(30000)/(0.2) \\ x\ge150000 \end{gathered}`