We have 20% and 70% salt solutions.
We need 9 liters of 50% salt solution.
"t" is liters of twenty % solution "s" is liters of seventy % solution
A) t + s = 9
B) .2t + .7s = (.5 * 9)
Multiplying A) by -.2
A) -.2t + -.2s = -1.8 Adding that to B)
B) .2t + .7s = (.5 * 9)
.5s = 2.7
s = 5.4 liters of 70% salt
A) t + 5.4 = 9
t = 3.6 liters of 20% salt
Source:
http://www.1728.org/mixture.htm
Answer:
Step-by-step explanation:
Answer:
x > 0.44
Step-by-step explanation:
-6 >-2 – 9x
9x > 4
x > 0.44444444
about 0.44
Answer:
74,650
Step-by-step explanation:
270 times 400 and 125 times 400 - 83,350 = 74,650
Answer: option B. x - 2/3
Explanation:
Something is missing in the question.
It seems the question if g [ f(x) ]
If that is so, then you have to find f(x) and use it as input of g(x).
This is:
g [ f(x)] = g [ x - 2]
g [ x - 2] = (x - 2) + 4/3 = x - 2 + 4/3 = x - 2/3, which is the option B.