Question

A store makes a profit of $25 on each watch it sells. What solution setwill represent how many watches the store must sell to make a profitof at least $375?US

Answer 1

Here, the variable is the number of watches.

The profit on each watch it sells is, $25.

The least profit to be made is, $375.

Let x be the number of watches, Then we have, the total profit as,

`25x`

This profit should be atleast 375, therefore, we have,

`\begin{gathered} 25x\ge375 \\ (25x)/(25)\ge(375)/(25) \\ x\ge15 \end{gathered}`