Convert as indicated.
-In a physics lab, Shelly recorded the speed of an object at 150 feet per second. Convert this speed to miles per hour. (Round to the nearest whole, if necessary.)
A) $2 \mathrm { mi } / \mathrm { hr }$
B) $\frac { 5 } { 176 } \mathrm { mi } / \mathrm { hr }$
C) $540,000 \mathrm { mi } / \mathrm { hr }$
D) $102 \mathrm { mi } / \mathrm { hr }$

Question

Quizplus · Accepted Answer

To convert 150 feet per second to miles per hour, use the conversion factors $5280 \, \text{feet} = 1 \, \text{mile}$ and $3600 \, \text{seconds} = 1 \, \text{hour}$. Thus, $150 \, \text{feet/second} \times \frac{1 \, \text{mile}}{5280 \, \text{feet}} \times \frac{3600 \, \text{seconds}}{1 \, \text{hour}} = 102 \, \text{miles/hour}$.

Convert as Indicated 2mi/hr2 \mathrm { mi } / \mathrm { hr }2mi/hr

Convert as Indicated $2 \mathrm { mi } / \mathrm { hr }$