Answer:
The amount Roberta makes an hour is $119.5
Explanation:
Let the number Roberta makes 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 the values:
Amount earned in an 8 hour shift = 9*8 + 12.5% od 380
= 72 + 0.125 * 380 (12.5% = 0.125)
= 12 + 47.5
= 119.5
Answer:
$119.50
Explanation:
12.5x = 9x100
12.5x = 900
12.5x/12.5 = x
900/12.5 = 72
x = 72
12.5% * $380 = $47.50
72.00 + 47.50
$119.50
