a tank can provide water for 50 families for 5 days. how many days longer can the same tank provide water for 20 families?
Depends if the family lives
lol sorry!
50 families *5 days = 20 families * x days
x=50*5/20=25/2
If a tank of water can provide 50 families with water for 5 days then that same tank could provide 20 families with 8 days of water. Think of this question as a ratio. 50:5 (50 families to 5 days) Since this ratio simplifies to 10:1 that says that for every 10 families taken away you gain an additional day that the said tank of water lasts. 50 Families use a tank of water that lasts 5 days40 Families use a tank of water that lasts 6 days30 Families use a tank of water that lasts 7 days20 Families use a tank of water that lasts 8 days.
-.-
but the choices are 6, 6 1/2, 7 , 7 1/2?
hey dan815 kindly explain your work to me .. thanks..
@ikram002p explain plz
Cause they camels, they only drink once a week
lol
hmm those are the choices really?
guyz, it is really hard answering this question kindly explain it to me guyz..
yes..
its like this.. if 5 people eat 5 apples
then thats 1 apple for 1 person
if 2 people have to eat 5 apples then thats 5/2 apples per person
yes.. i got you then?
they only need to eat 1 apple a day, so it will last them 5/2 times longer
because an apple a day keeps the doctor away
But nowadays to get the Nutrients in an apple back in 1850, you will have to eat 5 apples.
that one i dont really understand..
is it linear relation ?
i also dont know whta topic is this..
the tank is constant variable , so just make a linear relation btw families and days |dw:1403089197804:dw|
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