Zane has already prepared 9 kilograms of dough and will continue preparing 1 kilogram of dough every hour. How many hours did Zane work if he prepared 17 kilograms of dough?

8 hours

Step-by-step explanation:

Use h to represent the number of hours Zane works.  He already has 9 kg of dough and is adding 1 kg per hour.  The total number of kilograms is

9 + h = 17

Subtract 9 from both sides.

h = 8 hr

answer: d. $20

step-by-step explanation:

just took the test

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23