Question

roberta makes 9$ an hour plus a 12.5% commission selling jewelery.How much dows she eadn on an 8 hour shift in which she sells 380$ worth of jewelery

Answer 1

8 hours x $9 = $72

$380/12.5% = $47.50

$72 + $47.50 = $119.50

Answer 2

It is given Roberta makes 9$ an hour plus a 12.5% commission selling jewelry and she sells 380$ worth of jewelry in 8 hours.

Let the number of hours Roberta work be x hours .

Amount earned in x hours shift =9* x + 12.5% of the amount of jewelry sold.

Number of hours worked by Roberta if 9 hours and Jewelry worth 380$ is sold by her .

Substituting these values in the above equation :

Amount earned in 8 hours shift= 9 *8+12.5% 0f 380

= 72+0.125 *380 ( 12.5%=0.125)

=72+47.5

=119.5

Amount earned by Roberta in 8 hours is 119.5$

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