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AveGali [126]
3 years ago
7

Please help!!! Correct answer will get brainliest! A chemist needs 10 liters of a 10% alcohol solution but has only a 25% alcoho

l solution. How many liters each of the 25% solution and water should he mix to make the desired 10 liters of 10% solution???
Mathematics
1 answer:
Kamila [148]3 years ago
5 0
You must add 15 liters of pure water
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If you help me get this right i will give you brainly, and 5 stars! tysm
9966 [12]

Answer:

1.a

2.b

Step-by-step explanation:

The first column is the domain, while the second column is the range. Therefore, 1 is a, and 2 is b. Hope this helps!

7 0
2 years ago
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Which has the least absolute value?<br>A. 5<br>B. 30<br>C. -10<br>D. -50
ziro4ka [17]
Absolute value means the total distance from zero. So you get rid of any negative signs and then look at which number has the lowest value (which is the smallest number without any negative signs).
7 0
3 years ago
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Factor 4n^2 - 5n -6​
Allushta [10]

Answer:

(n-2) • (4n+3)

Step-by-step explanation:

4n2-5n-6  

Final result :

 (n - 2) • (4n + 3)

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (22n2 -  5n) -  6

Step  2  :

Trying to factor by splitting the middle term

2.1     Factoring  4n2-5n-6  

The first term is,  4n2  its coefficient is  4 .

The middle term is,  -5n  its coefficient is  -5 .

The last term, "the constant", is  -6  

Step-1 : Multiply the coefficient of the first term by the constant   4 • -6 = -24  

Step-2 : Find two factors of  -24  whose sum equals the coefficient of the middle term, which is   -5 .

     -24    +    1    =    -23  

     -12    +    2    =    -10  

     -8    +    3    =    -5    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -8  and  3  

                    4n2 - 8n + 3n - 6

Step-4 : Add up the first 2 terms, pulling out like factors :

                   4n • (n-2)

             Add up the last 2 terms, pulling out common factors :

                   3 • (n-2)

Step-5 : Add up the four terms of step 4 :

                   (4n+3)  •  (n-2)

            Which is the desired factorization

Final result :

 (n - 2) • (4n + 3)

3 0
3 years ago
18x-16=-12x-4<br> what is the value of x?<br>need help asap
amm1812
18x - 16 = -12x - 4 ---> Add 12x to both sides
30x - 16 = -4 ---> Add 16 to both sides
30x = 12 ---> Divide both sides by 30

x = 0.4
3 0
3 years ago
Read 2 more answers
What is the value of the digit 8 in Alaska's population
Yuri [45]
Well I found the number that you are referring to: (686,293) right?
anyway,I'm assuming that it's talking about the number 8 in the number which would be the Ten Thousands place.

7 0
3 years ago
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