Answer:
the runners have gone 20.8 times around the globe all together
Step-by-step explanation:
At the Bostom Marathon, we have a total of
N = 20,000 runners
We know that each runner ran a distance of
d = 26 miles
Therefore, the total distance travelled by all runners combined is:
[tex]D=Nd=(20,000)(26)=5.2\cdot 10^5 mi[/tex]
We know that the circumference of the Earth is
[tex]c=2.5\cdot 10^4 mi[/tex]
Here we want to find how many times around the globe would the marathon runners have gone. This can be found by calculating the following ratio:
[tex]n=\frac{D}{c}[/tex]
And substituting the values, we find:
[tex]n=\frac{5.2\cdot 10^5}{2.5\cdot 10^4}=20.8[/tex]
So, the runners have gone 20.8 times around the globe all together.