Question

Cher works in retail sales. Her salary is $400 plus 15% commission on weekly

sales.
Find her sales for the week if her wages for the week is $940.

Answer 1

Sales of the week = 3600

Explanation:

Given - Cher works in retail sales. Her salary is $400 plus 15% commission on weekly sales.

To find - Find her sales for the week if her wages for the week is $940.

Solution -

Let us assume that,

Her sales of the week = x

Now,

Given that, Her salary is $400 plus 15% commission on weekly sales.

So,

Equation of salary becomes

Salary = 400 +
`(15)/(100)x`

i.e.

Salary = 400 + 0.15x .......(1)

Now,

Given that,

her wages for the week is $940.

i.e. Salary = $940

Put in equation (1), we get

940 = 400 + 0.15x

⇒0.15x = 940 - 400

⇒0.15x = 540

⇒x = 3600

∴ we get

Sales of the week = x = 3600