Question

A car traveling at 65 mph leaves a 25-foot skidmark. What is the ratio of the speed (miles per hour) to the length of the skidmark (feet)? Give your answer in simplest form.

a) 13/5
b) 5/13
c) 65/25
d) 25/65

Answer 1

To find the ratio of speed to the length of the skidmark, convert the units to match. The ratio is 2736:1.

Step-by-step explanation:

To find the ratio of speed to the length of the skidmark, we need to convert the units so that they match. The car is traveling at 65 miles per hour and leaves a skidmark that is 25 feet long. To convert the speed to feet per hour, we multiply 65 mph by the conversion factor of 5280 feet per mile. This gives us a speed of 343,200 feet per hour. The ratio of speed to skidmark length is then 343,200 feet per hour to 25 feet, or 13,728:5. This simplifies to 2736:1.