Question

Bernard typically runs x km/hour. While he was sick, he only ran 41.5 km/hour. What equation represents that the difference in his speeds is 13.5 km/hour?

Answer 1

x – 41.5 = 13.5

Explanation:

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Answer 2

x - 41.5 = 13.5

Explanation:

Bernard typically runs x km/hour.

While he was sick, he only ran 41.5 km/hour.

If we consider that Bernard typically runs faster than what he ran while he was sick.

Then the equation that represents that the difference in his speed is 13.5 km/hour is

x - 41.5 = 13.5 ........ (1) (Answer)

Solving this equation we get x = 55 km/hour.

So, Barnard typically runs 55 km/hour.