inches
89.
First, convert 2843in to feet. This is done by taking 2843/12=236.917 ft. Then, to go from feet to miles, the conversion is 5280ft/mile, so take 236.917/5280 to obtain .044871 miles. MILES would be the numerator
There are 90 cm in 900 mm. When converting from cm to mm, move the decimal 1 place to the left.
The answer is 1.778 decimeters so 2 decimeters if you round.Take 7 inches and times it by 2.54 cm/inches=17.78 centimeters then just convert it to decimeters which is one decimal place over
Inches
You would place "centimeters" in numerator and "centimeters per inch" in the denominator. (centimeters)/(centimeters/inch) = [(centimeters) x (inch)] / [centimeters] which yields "inch(es)"
inches
89.
inches
Centi is the prefix for one hundredth so numerator = 100 an denominator = 1.
inches go in the numerator
20
inches
In converting 54 cm to inches, you would place the unit "inches" in the numerator of the ratio. Since there are 2.54 cm in 1 inch, the ratio would be written as 1 inch/2.54 cm.
You want the units to cancel. Think of what you already have as a value /1. So if you have 90 inches, you would write it as: 90 inches/1 * 2.54 cm/1 inch This makes the inch on the left cancel with the inch on the right, leaving you with cm as the units for your answer.
2843in x 1ft/12in x 1mi/5280ft = 0.04487mi