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puteri [66]
3 years ago
13

Molly jogged at a rate of 6 miles per hour. What was her speed in feet per second?

Mathematics
2 answers:
Feliz [49]3 years ago
8 0
Hello there!

Speed = distance / time

To do this, convert:

miles --> feet

hour --> seconds

After you get your answers, plug them into the equation above, and you'll get your answer!

( I get that a previous user already answered, but I just wanted to throw in my two cents). :)

Hope this helped!

---------------------------------

DISCLAIMER: I am not a professional tutor or have any professional background in your subject. Please do not copy my work down, as that will only make things harder for you in the long run. Take the time to really understand this, and it'll make future problems easier. I am human, and may make mistakes, despite my best efforts. Again, I possess no professional background in your subject, so anything you do with my help will be your responsibility. Thank you for reading this, and have a wonderful day/night!
12345 [234]3 years ago
3 0

To solve this problem, you need to set up a proportion. If she jogs 6 miles per hour, then this can be written as \frac{6(miles)}{1(hr)}. If there are 5280 feet in a single mile, then first we multiply the two proportions like this:

\frac{6(miles)}{1(hr)} * \frac{5280(ft)}{1(mile)}

The two 'mile' values cancel each other out, so then just multiply \frac{6*5280(feet)}{1(hour)}. This equals to 31680 feet per hour. Now let's  convert to seconds.

\frac{360(seconds)}{1(hour)}, or 360 seconds every hour. Since hours are much longer than seconds, multiply 31680 by the reciprocal of 360, so that it makes sense.

31680 * \frac{1}{360}

She runs 88 feet per second.

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