if I spider can move 13/10 it's every hour then how many hours would it take for a spider to go 39 miles?

1 Answer
Jake M.
Mar 20, 2018

30 hours

Explanation:

The spider goes 13/10 miles in an hour, which means that in 10 hours, she will go 13 miles.

Well, 39 miles is just triple that distance, so it only takes triple that time, i.e. 30 hours.

To solve this just with math, we can use the formula for distance traveled: distance is rate times time.
#d = r t #
We can solve for time:
#t = d/r #
and plug in the numbers:

#t = (39 \ mi)/(13/10 \ mph) = 39 / (13/10)\ hr = 390 / 13 \ hr = 30 \ hr#

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