Posted by **Anonymous** on Friday, March 29, 2013 at 5:52pm.

what is the speed in miles per hour of toy car that runs 40 ft in 8 seconds. 1 hour=3600. 1 mile=5280 ft

- algebra -
**Ms. Sue**, Friday, March 29, 2013 at 5:58pm
Cross multiply and solve for x.

40/8 = x/3600

8x = 144,000

x = 18,000 ft

18,000 / 5,280 = 3.4 mph

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