Question
A moving sidewalk in Pearson Airport, Ontario, is 912 ft long and moves at a rate of $6 \mathrm{ft} /$ sec. If Alida walks at a rate of $4 \mathrm{ft} / \mathrm{sec},$ how long will it take her to walk the length of the moving sidewalk?
Step 1
Therefore, her total speed is the sum of her walking speed and the speed of the moving sidewalk. In this case, her total speed is $4 \mathrm{ft} / \mathrm{sec}$ (her walking speed) + $6 \mathrm{ft} / \mathrm{sec}$ (the speed of the moving sidewalk) = $10 Show more…
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