To know the value that y takes according to the inequation , we must do some algebra.
First of all, we divide both terms by (-3), wich would change the direction of the inequality, as follow: (at this point you should remember that dividing or multiplying an inequation by anegative number changes the direction of the inequality)..
This means that . Then,we just have to add both sides 4, which yields .
Then , which means that, if we divide both sides by 5, we obtain the value of y: (in this case, the direction of inequality does not change because 5 is possitive).
New volume is given by: New volume=(old volume)×(4×2/9×2/9) simplifying the above we get: New volume=(old volume)×16/81 Thus the new volume is 16/81 times the old volume old volume=πr²h Hence: Answer:16/81πr²h
, we must do some algebra.
(at this point you should remember that dividing or multiplying an inequation by anegative number changes the direction of the inequality)..
. Then,we just have to add both sides 4, which yields
.
, which means that, if we divide both sides by 5, we obtain the value of y:
(in this case, the direction of inequality does not change because 5 is possitive).
