Question

Jenna works in an ice cream shop. When she starts her shift the tub of chocolate ice cream is 2/3 full. When she finishes her shift 6 1/2 h later,

there is only 1/6 of the tub left. What was the average hourly change in tub fullness?

13

1

13

5

39

5

39

Answer 1

1/13

Explanation:

Ice cream

starting = 2/3 full

After Jenna's shift = 1/6 of the tub

Total Time = 6.5hours

Amount of ice cream consumed =
`(2)/(3) - (1)/(6)`

=
`(1)/(2)` = 0.5

Rate per hour = amount of ice cream consumed -=/ total time

= 0.5/6.5 = 1/13 ice cream consumed per hour