The length of the Boston Marathon is 138,435 ft. Each stride, or step, by a particular runner is 3 ft long. Does the number of strides the runner takes fit evenly into the length of the race? Explain

Fit evenly basically means does the runner need to take a whole number of steps to complete the race, assuming the runner travels a consistient distance per stride

easy way is

is 138435 divisble by 3?

a hack to tell if a number is divisble by 3 is to add the digits and if the sum is divisble by 3, it is divisble

1+3+8+4+3+5=24

24 is 3 times 8

it is divisible by 3

yes

Yes! If you divide 138,435 by 3, the number of strides the runner takes fit evenly into the length of the race. Therefore the answer is 46,145 ft.