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Which expression converts 100 inches per minute to feet per minute?

A. [tex]\frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{60 \text{ minutes}}{1 \text{ hour}}[/tex]

B. [tex]\frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{1 \text{ hour}}{60 \text{ minutes}}[/tex]

C. [tex]\frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{1 \text{ foot}}{12 \text{ inches}}[/tex]

D. [tex]\frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{12 \text{ inches}}{1 \text{ foot}}[/tex]


Sagot :

To convert 100 inches per minute to feet per minute, we need to use the relationship between inches and feet. Specifically, we know that 1 foot is equal to 12 inches. Therefore, to convert inches to feet, we divide the number of inches by 12.

Step-by-step solution:

1. We start with the given rate of 100 inches per minute.
2. To convert inches to feet, we need to use the conversion factor [tex]\(\frac{1 \text{ foot}}{12 \text{ inches}}\)[/tex].
3. Therefore, we multiply the rate by this conversion factor:

[tex]\[ \frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{1 \text{ foot}}{12 \text{ inches}} \][/tex]

4. When we multiply, the inches unit cancels out, and we are left with feet per minute:

[tex]\[ \frac{100}{12} \text{ feet per minute} \][/tex]

5. Simplifying [tex]\(\frac{100}{12}\)[/tex]:

[tex]\[ \frac{100}{12} = 8.333333333333334 \text{ feet per minute} \][/tex]

Therefore, the correct expression to convert 100 inches per minute to feet per minute is:

[tex]\[ \frac{100 \text{ inches}}{1 \text{ minute}} \times \frac{1 \text{ foot}}{12 \text{ inches}} \][/tex]