Hook and neil are racing. hook runs 12 kilometers with an average speed of 14.88 kph. neil runs the same distance but is 4 minutes slower than hook. what is neil's average speed in kilometers per hour?

Neil's average speed is 13.74 km/h

Step-by-step explanation:

- Hook runs 12 kilometers

- His average speed is 14.88 km/h

∵ Average speed = total distance ÷ total time

∴ Total time = total distance ÷ average speed

∵ His average speed = 14.88 km/h

∵ His distance = 12 km

∴ His time = 12 ÷ 14.88 = hour

- Neil runs the same distance

- His time longer than the time of Hook by 4 minutes because

  he slower than him by 4 minutes

- Lets change the 4 minutes to hour

∵ 1 hour = 60 minutes

∴ 4 minutes = = hour

∵ The time of Hook hour

∵ The time of Neil is longer by hour

- Add the value above to the time of Hook to get the time of Neil

∴ The time of Nile = +

∴ The time of Nile = hours

* Now lets find the average speed of Neil

∵ The distance of Neil is 12 km

∵ His time = hours

∴ His average speed = 12 ÷ = 13.74 km/h

* Neil's average speed is 13.74 km/h

hi, i am not sure about this one but i think its d,

hope this !

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21