$$ \definecolor{crimBlue}{rgb}{0.196,0.467,0.533} \definecolor{crimOrange}{rgb}{0.969,0.553,0.149} \definecolor{crimGreen}{rgb}{0.498,0.694,0.302} $$
山姆跑63756英尺每70分鐘。什麼是山姆的速度在每小時英里？ （有在1英里5280英尺。）

步驟1： 什麼是山姆率說明？

步驟2： 什麼因素是用來英尺每分鐘轉換成每分鐘哩？

Step 3: What factor is used to convert miles per minute to miles per hour?

Step 4: Calculate the result:

61,776 • 60
70 • 5,280
= miles / hour
$$= \frac {63,756 \text { 英尺}} {70 \text { 我的}}$$
$$= \frac {63,756 {\color {crimOrange} \text { 英尺}}} {70 \text { 我的}}$$
$$= \frac {63,756 {\color {crimOrange} \text { 英尺}}} {70 {\color {crimOrange} \text { 我的}}}$$
$$= \frac {63,756 {\color {crimOrange} \cancel {\text { ft}}}} {70 \text { min}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel { \text { ft}}}}$$
$$= \frac {63,756 {\color {crimOrange} \cancel {\text { ft}}}} {70 {\color {crimOrange} \text { min}}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel { \text { ft}}}}$$
$$= \frac {63,756 {\color {crimOrange} \cancel {\text { ft}}}} {70 {\color {crimOrange} \text { min}}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel { \text { ft}}}}$$
$$= \frac {63,756 {\color {crimOrange} \cancel { \text { ft}}}} {70 {\color {crimOrange} \cancel {\text { min}}}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel {\text { ft}}}} \cdot \frac {60 {\color {crimOrange} \cancel {\text { min}}}} {1 \text { hr}} $$
$$= \frac {63,756 {\color {crimOrange} \cancel { \text { ft}}}} {70 {\color {crimOrange} \cancel {\text { min}}}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel {\text { ft}}}} \cdot \frac {60 {\color {crimOrange} \cancel {\text { min}}}} {1 \text { hr}} $$
$$= \frac {63,756 {\color {crimOrange} \cancel { \text { ft}}}} {70 {\color {crimOrange} \cancel {\text { min}}}} \cdot \frac {1 \text { mile}} {5,280 {\color {crimOrange} \cancel {\text { ft}}}} \cdot \frac {60 {\color {crimOrange} \cancel {\text { min}}}} {1 \text { hr}} $$
$$ = 10.35 \frac {\text{miles}}{\text{hour}} $$