To find the time it takes for a ladybug traveling at a speed of 3 inches per second to crawl up a 10-foot section of wall, you need to ensure that both measurements are in the same unit.
Since the ladybug's speed is given in inches per second (in/s), it makes sense to convert the height of the wall from feet to inches.
1 foot is equal to 12 inches, so:
\[ 10 \text{ feet} = 10 \times 12 = 120 \text{ inches} \]
Now you can use the formula \( d = vt \) to find the time \( t \):
\[ t = \frac{d}{v} = \frac{120 \text{ inches}}{3 \text{ inches/second}} = 40 \text{ seconds} \]
Thus, it makes the most sense to convert the height from feet to inches before performing the calculations.
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