anonymous
  • anonymous
If a sprinkler waters 1 over 15 of a lawn in 1 over 5 of an hour, how much time will it take to water the entire lawn? 2 hours 3 hours 10 hours 15 hours
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Hero
  • Hero
@_greatmath7 giving answers is against CoC
anonymous
  • anonymous
I never saw the answer, yay :)
anonymous
  • anonymous
@Hero can you walk me through it?

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More answers

Hero
  • Hero
Well, do you know how to figure out how much 1/5 of an hour is in minutes?
anonymous
  • anonymous
not really
Hero
  • Hero
Well let's do it this way: 1/5 of an hour = 1/5 times 60 minutes = 60/5 minutes.
anonymous
  • anonymous
ok
anonymous
  • anonymous
60/5 would be 13 right?
anonymous
  • anonymous
no no 12?
Hero
  • Hero
Yes, correct, now think of it this way: Every 12 minutes, 1/15 of the lawn is watered so... The first 12 minutes, 1/15 is watered After 24 minutes, 2/15 is watered ... After 36 minutes 3/15 is watered ... So as you can see, once we get to 15/15, the whole lawn will be watered which will be a total of 15 intervals until the whole lawn is watered. The shortcut to calculate this is to simply take 12 and multiply it by 15. So 12×15 minutes. Then divide that amount by 60 to convert back to hours.
Hero
  • Hero
Sorry, had to correct a typo.
anonymous
  • anonymous
ok
anonymous
  • anonymous
so then it would be 15 right?
Hero
  • Hero
What kinds of calculations have you made so far? If you did what I explained, there's no way you get 15. Show me what you did to get 15.
anonymous
  • anonymous
well i didnt get 15 i got 30. i thought that would be 3 hours but 15 made more sense. this is what is did..
Hero
  • Hero
Make sure you read the instructions I wrote exactly first.
Hero
  • Hero
15 is just the number of intervals it takes to water the entire lawn.
anonymous
  • anonymous
12 x 15 = 180 180/60 = 3
Hero
  • Hero
Yes, that's better.
anonymous
  • anonymous
oh i said 30 before >_<
anonymous
  • anonymous
i meant 3. Would that be 3 hours then?
Hero
  • Hero
Yes, it would.
anonymous
  • anonymous
ok thank you i will do what i did for this on other questions. i have so many like this
Hero
  • Hero
Good luck with it.
anonymous
  • anonymous
Thank you for the help. :)

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