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Posted by **courtney** on Thursday, October 21, 2010 at 7:07pm.

a model airplane flies 18 feet in 2 seconds what is the planes speed per miles an hour?

how do i do these

- math -
**MathMate**, Thursday, October 21, 2010 at 9:52pm1.

One tablespoon is equal to 15 ml.

One US gallon has 3.785 litres = 3785 ml.

One mile has 1760 yards.

So the distance per gallon

= (3785/15)*125 yds/1760 yds/mile

= ? miles

2. 1 mile = 5280 ft

1 hour = 3600 s.

Try to work out the conversion, one step at a time.

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