Al runs 8 miles per hour. Bob runs 1 mile in 8 minutes. Carl runs 2 miles in 15 minutes. Dan runs 1/2 of a mile in 3.5 minutes. Who runs the fastest?

Respuesta :

Answer:Dan

Step-by-step explanation:

Dan is the fastest with a rate of 0.142mi/min

This question relates to rate in mathematics and we would find the rate at which each of them run.

Data given

  • AI = 8 miles per hour
  • Bob = 1 mile in 8 minutes
  • Dan =1/2 mile in 3.5 minutes

Let's use minutes as the standard unit of time here. The rates would be

Rate

AI

[tex]8 miles = 1 hour\\1 hour = 60 minutes\\8 miles = 60 minutes\\x miles = 1 minute\\x = 8/60\\x = 0.13\\0.13mi/min[/tex]

The speed of AI is 0.13 miles per minute.

Carl

[tex]2miles = 15 minutes\\x miles = 1minute\\x = 2/15\\x = 0.13mi/min[/tex]

Carl's speed is 0.13 miles per minutes.

Dan

[tex]1/2miles = 3.5 minutes\\x miles = 1minutes\\x = 0.5/3.5\\x = 0.142mi[/tex]

Dan runs at 0.142 miles per minute.

From the above calculation the rate at which they run are, AI runs 0.13 mi/min, Carl runs 0.13 mi/min and Dan runs 0.142 mi/min making him the fastest amongst the three.

Learn more about rate here;

https://brainly.com/question/2972832

Q&A Education