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igor_vitrenko [27]
3 years ago
11

How many liters of 10% alcohol solution and 5% alcohol solution must be mixed to obtain 40 liters of 8%

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

x+y=40liters

10%x+5%y=8%×40

(2x+y)/20=8%×40

(2x+y)=64

x=24

y=16

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Answer:

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3 years ago
Suppose we want to choose 5 letters, without replacement, from 9 distinct letters. (If necessary, consult a list of formulas.) (
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Answer:

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Step-by-step explanation:

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Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t
tankabanditka [31]

Answer:

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******************************************************

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Step-by-step explanation:

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