Chapter 0.2, Problem 7E

To determine

To solve the equation $20km=?mi$

Answer to Problem 7E

  $20km=12.43mi$

Explanation of Solution

Given Information: $20km=?mi$

Formula Used :unit conversion

Calculation:

Given equation is

  $20km=?mi$

So-

  $1km=0.6215mi$

Hence to calculate $20km$ to miles, multiply both sides by 20 -

  $1km\times 20=0.6215mi\times 20$

This gives-

  $20km=0.6215mi\times 20$

Hence the final answer is,

  $20km=12.43mi$