Abottle-nosed dolphin can travel about 2 miles in 5 minutes. at this rate, how long does it take the dolphin to travel 8 miles?

20 minutes

Step-by-step explanation:

Hi, to answer this question, first, we have to calculate the speed rate of the dolphin.

Speed = distance /time

Replacing with the values given:

2 miles / 5 minutes = 0.4 miles per minute

Next, to find the time that takes the dolphin to travel 8 miles.

Time = distance /speed

x = 8 miles / 0.4 miles per minute

x = 20 minutes  

Feel free to ask for more if needed or if you did not understand something.

50

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870