Which equation correctly relates distance, speed, and time?

Which equation correctly relates distance, speed, and time?

• A. Speed Times Time
• B. Distance Equals Speed Times Time
• C. Speed Equals Distance ÷ Time
• D. Time Equals Distance ÷ Speed

Answer: (B)

Distance relates to speed and time through a simple product: when you travel at a constant speed, the distance you cover is obtained by multiplying speed by time. For example, at 60 miles per hour for 2 hours, you’d go 60 × 2 = 120 miles. The equation that expresses this directly is distance equals speed times time. You can also rearrange the relationship to solve for speed (speed equals distance divided by time) or for time (time equals distance divided by speed), but the direct form showing distance as the product of speed and time is the clearest way to relate all three quantities.

Distance relates to speed and time through a simple product: when you travel at a constant speed, the distance you cover is obtained by multiplying speed by time. For example, at 60 miles per hour for 2 hours, you’d go 60 × 2 = 120 miles. The equation that expresses this directly is distance equals speed times time. You can also rearrange the relationship to solve for speed (speed equals distance divided by time) or for time (time equals distance divided by speed), but the direct form showing distance as the product of speed and time is the clearest way to relate all three quantities.