Answer:
white 47.7%, mulatto (mixed white and black) 43.1%, black 7.6%, Asian 1.1%,
Step-by-step explanation:
white 47.7%,
mulatto (mixed white and black)
43.1%, black 7.6%,
Asian 1.1%,
Answer:
29.390
Step-by-step explanation:
don't know the explnation because i won't tell u
Answer:
- 33 1/3 liters of 30%
- 16 2/3 liters of 45%
Step-by-step explanation:
Let x represent the liters of 45% solution needed. Then the amount of HCl in the mix is ...
0.45x +0.30(50 -x) = 0.35(50)
0.15x = 0.05(50) . . . . . simplify, subtract 0.30(50)
x = (0.05/0.15)(50) = 50/3 = 16 2/3 . . . liters of 45% HCl
33 1/3 liters of 30% and 16 2/3 liters of 45% HCl are needed.
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<em>Comment on the solution</em>
You may notice that the general solution to a mixture problem of this sort is that the fraction of the mix that is the highest contributor is ...
(mix % - low %) / (high % - low %) = (.35 -.30) / (.45 -.30) = .05/.15 = 1/3
Answer:
2n-4
Step-by-step explanation:
it isn't actually lololololol reeeeèeee. Nah jk it is
