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Sidana [21]
3 years ago
9

How much alcohol is there in 30 liters of a 45% alcohol solution?

Mathematics
2 answers:
zaharov [31]3 years ago
7 0

Answer:

Answer: 60%

Step-by-step explanation:

nadya68 [22]3 years ago
7 0

Answer:

13.5 Litres of alcohol

Step-by-step explanation:

45/100 * 30

0.45 * 30

=13.5

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What are the solutions to x2 + 8x + 7 =.b?
loris [4]

Answer:

x = 7 and x = -1

Step-by-step explanation:

First, we need to factor this quadratic.

To do this, start by finding all the factors of C.

7 x 1, -7 x -1

Now, we need to pick out the factors that add up to the b number, which is 8. That would be 7 and 1.

Now, we can use the numbers 7 and 1 to create two binomials.

( x + 7 ) ( x + 1 ) = 0

The last thing we need to do is to set those binomials to 0 and solve each of them individually.

x + 7 = 0

x = - 7

Solving the first binomial gives us our first solution, -7.

x + 1 = 0

x = -1

Solving the second one gives us our second solution, -1.

The solutions are -7 and -1.

4 0
3 years ago
What is the answer to this
deff fn [24]
So the first column is if a serving is 36 so all you have to do is divide all the different ingredient amounts by three and that will tell you the answer for the serving of 12 row because 12 * 3 = 36

and for the 24 row just multiply all the numbers you get in the 12 row and that will be the answer cause 12 * 2 = 24 

then what ever numbers you get on the 12 serving column just divide those by 12 and that will tell you how much you get for one serving and that will help you solve for the 60 one and the 300 one all you have to do it times the numbers by 60 and then 300

8 0
3 years ago
3(2x - 4) + x = 9<br> help with homework
natita [175]

6x - 12 + x = 9

6x + x - 12 = 9

Collect like terms

7x - 12 = 9

Add both sides 12

7x - 12 + 12 = 9 + 12

7x = 21

Divide both sides by 7

7x ÷ 7 = 21 ÷ 7

x = 3

7 0
3 years ago
Read 2 more answers
How do you write 2/9 as a decimal
Taya2010 [7]
2/9 = 0.2222(repeating)
I hope this helps :)
6 0
3 years ago
What is the total weight of 7 penciles
Mamont248 [21]

Answer:

0.2 - 0.3 pounds

Step-by-step explanation:

Well because I dont know much information about the weight and background of the pencils. My answer may not be correct. But the average weight would be around 0.2 - 0.3 lbs.

6 0
3 years ago
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