Answer:
1.9
Step-by-step explanation:
something to the power of 0 is 0, and for the other, you can't really do that number, it's a bit too big
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:
3x+4=y
x+y=32
Step-by-step explanation:
x= magazine book price
y=history book price
you need to multiply the price of the magazine by 3 and add 4 to get the price of the history book, 3x+4=y.
You also need to add the price of the magazine and history book to get $32, x+y=$32.
16 oz = 1 lb
Step-by-step explanation:
9.375 lb = 150 oz
Answer:
9.375 lb
150 oz
its d or e
