Chapter 0, Problem 56P

To determine

To complete: the given blank.

Answer to Problem 56P

The result is 390cm=3.9m

Explanation of Solution

Given:

  $\_cm=3.9m$

Calculation:

The given units are customary units of lengths. For conversion, please refer to conversion table given in book, reproduced here.

Unit 1	Unit 2
1 centimeter (cm)	10 millimeter (mm)
1 meter (m)	100 centimeter (cm)
1 kilometer (km)	1000 meter (m)

Since, 1 meter has 100 centimeters. To find centimeters in 3.9 m, we must scale up centimeters in meter by 3.9. In other words, multiply conversion factor (100) by actual meters to be converted.

So,

  $\begin{array}{l}3.9m=3.9\times 100cm\\ =390cm\end{array}$

Therefore, $390cm=3.9m$

Conclusion:

Therefore, the result is 390cm=3.9m