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Average Speed: With and Without Breaks

ACTMAT-GVJIKJ

The following graph depicts miles walked by Scott over a period of 12 hours, including breaks:

Scott calculated his average speed, both with and without his breaks.

Approximately how much faster was Scott’s average speed when he did not include his breaks, in miles per hour?

A

$0.21$

B

$0.48$

C

$0.36$

D

$5.17$

E

$4.33$