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ok theres a problem, with a couple questions to it..i have absolutely no idea how to do it! ..i know u have to convert units but im not sure how to do that..soo any help would really be appreciated. k..heres the problem:


Four farms share irrigation water from the same reservoir. The average depth of the reservoir is 8.0 m. Each farmer has 2 center-pivot irrigation sprinklers. Each sprinkler can pump more than 4000 L water per minute.

1.During the 3-month gorwing season the farmers plan to irrigate their field for 16 hours a day, every day. Assuming that the reservoir is not refilled during the growing season, do they have anough water for their plan? Justify your response.

2. If the farmers do not modify their plan, for how mant days can the reservoir supply them with water?

3. What is the maximum number of hours per day the farmers can operate the sprinklers and still irrigate for the full 3 months?

2006-11-16 15:09:40 · 8 answers · asked by Anonymous in Education & Reference Homework Help

i know theres not enough info! it doesnt say anything about how much water it holds or anything like that..thats what got me confused and made it so i cant figure it out. i copied every word the page says..oohh mann..my teachers a freakin crack baby for makin us do this!..


And no..im not majoring in math..im in 9th grade man..in Intergrated math 1..(not sure what intergrated means but oh well) ..my teachers a freakin dill hole!

2006-11-16 15:28:47 · update #1

YOUR FREAKIN DILL HOLES..I ALREADY TOLD U THATS ALL THE FREAKIN INFO THEY GAVE..I PUT DOWN EVERYTHING THE FREAKIN BOOK SAYS..SO STOP TELLING ME I LEFT OUT INFO. IM NOT THE ONE WHO LEFT IT OUT..WHOEVER MADE THE FREAKIN TEXT BOOK LEFT IT OUT!

2006-11-16 15:58:04 · update #2

8 answers

I think you left out some info. what is the area of the pond? you need to know this to find out how much water is in the pond. then you calculate how much water the farmers will be using.

Ok basically you need to use the rule of one to convert here; if you don't know what this is learn it.

1= 4000L/1min = 30days/1month = 16hrs/1day = 60min/1hr
notice that 16hours equals one day because this is the amount of time per day that the farms are watered

1.) 8sprinklers * 3 months= 24sprinkler months
Pretty cool sounding unit right. Now what you need to do is convert 24 sprinkler months into a volume of water. You do this by multiplying it by 1

24sprinkler months * 4000L/min/1sprinkler * 30days/1month *16hrs/1day * 60min/1hr = 2764800000Liters
now convert this to m^3 and compare to the volume of water in the resevoir.

2.)In this part you need to convert the amount of water in that reservoir into days of water supply.

Per day the farmers use
8sprinklers * 4000L/min/sprinkler *16hours/1day * 60min/1hr = 30720000L/day

So now take volume of water in resevoir * 1day/30720000L = your answer in days

3.)For this one just convert the volume of water in the resevoir into the amount of time it will take to completely drain. Then take this number and divide by 90days.

yaaaaaaaaaaawn. sorry it is my bedtime. good luck

2006-11-16 15:48:54 · answer #1 · answered by da-chi-town-man 2 · 0 0

If you knew there wasn't enough info why did you ask us ? We are just confirming that you are right. Now use your copying skills to write down the other guys answer about how to calculate the number of liters needed over 3 months and show it to your teacher to show her that you went the extra step rather than to mouth off and say.... There is not enough info. Who's the crackbaby now? By the way do you kiss your mother with that mouth???

Since you only know one dimension of the reservoir "average depth of the reservoir is 8.0 m." You can not determine how much water in volume is in the reservoir ... 8 m by what? You need to be able to determine how much water they began with. And then convert that quantity to L (liters) Look up metrix conversion table on google to help with that part. If this is the whole question there is a typo .. something is missing.

2006-11-16 15:23:04 · answer #2 · answered by CAE 5 · 0 0

There is not enough information to answer these questions, since we cannot determine and are not told how much water is in the reservoir. We would at least have to know the surface area, and then you could calculate the capacity since you alrady have the average depth.

2006-11-16 15:17:56 · answer #3 · answered by Steve-o-58 3 · 0 0

If you're in Australia, kind within the first four digits of your mobilephone quantity at step one million. Then it really works. It's a practical calculation made tricky: X - first part of your mobilephone quantity Y - moment part of your mobilephone quantity X*(eighty+one million)*250=X*20250 X*20250+two*Y=two*(X*10,000+Y)+250 now subtract 250 and divide through two leaves you with X*10,000+Y that is your mobilephone quantity To get the primary part of your mobilephone quantity to 'become a member of up' with the moment side you must multiply it through 10,000 (shift it four decimal locations to the left). Clever regardless that...

2016-09-01 13:54:12 · answer #4 · answered by jordana 4 · 0 0

you need to provide the area of the reservoir

2006-11-16 15:17:08 · answer #5 · answered by jackwp2000 2 · 0 0

not enough info to answer the queston. You have to know the area of the reservior inorder to know if thier will be enough water
Sorry tried to help

2006-11-16 15:21:47 · answer #6 · answered by Pharm D 2 · 0 0

take a field trip to the farmer and ask lol jp

2006-11-16 15:14:08 · answer #7 · answered by Anonymous · 0 0

hey, you must be majoring in Math... these are not ordinary problems...

2006-11-16 15:14:45 · answer #8 · answered by signsden 3 · 0 0

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