Ronald has 12% of fertile. How much pure to grow should he add to get 32 ounce of a 17.5% concentration?
please help me.
heres da next question.
How many ounces of water must be added to 20 ounces of an 8% salt solution to make a 2% salt solution?
please help me, and thank you. =)
2007-07-07 16:41:43 · 4 answers · asked by Ashley M 1 in Science & Mathematics ➔ Mathematics
Ashley, lay off those Eubonic textbooks.
For the water problem, your basic equation is
Mass of salt = [Volume solution x percent salt at end]= SUM(volumes x percent salt)
You should learn to explictly state your equation.
V1=20 ounces
percent 1= 8%
V2= x ounces
percent 2= 0
Final volume = 20+x
percent final= 2%
From equation 2*(20+x) = 20*8 + [0]
Finally, x= 60 ounces.
2007-07-07 17:11:28 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋
I am SORRY! I really tried to help but... I just suck at Math. And I am sorry that you got stuck with the unfortunate task of doing it. Good Luck.
2007-07-07 23:47:57 · answer #2 · answered by Anonymous · 0⤊ 1⤋
5.6 ounces and 50ounces
2007-07-07 23:53:42 · answer #3 · answered by wrenchbender19 5 · 0⤊ 0⤋
i dont get the first question
2007-07-07 23:45:28 · answer #4 · answered by mcfoxyluver 3 · 0⤊ 0⤋