I need to convert from american standard to metric

Question

How do I convert 0.0300 miles to inches?

So to get from miles to inches: I would need to convert miles to yards, yards to feet and then feet to inches. Multiply to change larger units to small units.

First there are 1760 yards per mile

1760 x 0.0300= 52.8yards

Then convert yard to feet

3feet=1yard

52.8yards x 3feet =158.4feet

Then convert feet to inches

1 foot= 12 inches

158.4feet x 12inches=1900.8inches

Therefore 1900.8 inches is in 0.0300 miles.

Answer 1

Hi Mary,

 

   Correct -- Excellent work !

 

Best wishes.

Answer 2

• This is a conversion from one American standard unit to another, NOT from American standard to metric.
• "Multiply to change larger units to small units." is a valid rule only if you use specific conversion factors.
• The best way to change units is to use Dimensional Analysis.  This means using the fact that units can be cancelled just as numbers can.  The units tell you whether you should multiply or divide.  If the units come out correctly, the answer will be correct.
• 4/4=1  27/27=1   Inches/inches=1   meters/meters=1
• {0.0300Miles][5280feet/mile]=1584 feet
• [158.4 feet][12 inches/foot]=1900 inches
• I used different conversion factors.  That is OK as long as the factors are correct.
• The units tell you if you should multiply or divide.
• if there are 12 inches per foot, then there is 1 foot per 12 inches.
• This is usually taught in science classes.