How many miles per hour are you doing if you cover one and five eights of a mile in 2 min and 40 sec?

Anonymous

∙ 11y ago

Updated: 8/21/2019

60 sec = 1 min

60 min = 1 hr

40 sec = 40/60 min = 2/3 min

2 min 40 sec = 22/3 min = 8/3 min

→ 2 min 40 sec = 8/3 ÷ 60 hr

= 8/3 x 1/60 hr

= 2/45 hr

speed = distance ÷ time

= 15/8 mi ÷ (2 min 40 sec)

= 13/8 mi ÷ (2/45 hr)

= 13/8 x 45/2 mi/h

= 585/16 mph

= 369/16 mph

≈ 36.5 mph

Wiki User

∙ 11y ago

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