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Colt1911 [192]
3 years ago
8

What is the solution to this inequality?

Mathematics
1 answer:
algol133 years ago
7 0
  1. B hus5hoegu9r47jssnkiroohdd
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A chemist wishes to mix a solution that is 12% acid. She has on hand 6 liters of a 4% acid solution and wishes to add some 16% a
Damm [24]

Answer:

25 liters of the 16% solution should be added.

Step-by-step explanation:

pure acid amount + pure acid amount = total pure acid amount

0.02*10          + 0.16*x           = 0.12*(10+x)     <<<---=== it is your balance equation;  x is the amount (in liters) of the 16% solution.

0.02*10 + 0.16x = 0.12*10 + 0.12*x

0.16*x - 0.12*x = 0.12*10 - 0.02*10

(0.16 - 0.12)*x = 0.12*10 - 0.02*10

x = %280.12%2A10-0.02%2A10%29%2F%280.16-0.12%29 = 25.

Answer.  25 liters of the 16% solution should be added.

Check.   %280.02%2A10+%2B+0.16%2A25%29%2F%2810+%2B+25%29 = 0.12 = 12% of concentration of the final mixture.   ! Correct !

5 0
4 years ago
Anyone know this answer Help ASAP
Anton [14]

Answer:

The right answer is A (x=2,y=-1)

6 0
3 years ago
Solve for u . <br><br> - 4u + 38 = 2(u-8)<br><br> Simplify your answer as much as possible.
zloy xaker [14]
Hi there!
Let's solve this equation step by step!

- 4u + 38 = 2(u - 8)
First work out the parenthesis, which can for instance be done using rainbow technique.

- 4u + 38 = 2u - 16
Subtract 2u from both sides.

- 6u + 38 = - 16
Subtract 38 from both sides.

- 6u = - 54
And finally divide both sides by -6, in order to isolate the variable u. Remember that dividing a negative by a negative gives a positive outcome.

u = \frac{ - 54}{ - 6} = 9
Hence, the answer is u = 9.
~ Hope this helps you!
8 0
4 years ago
Read 2 more answers
Worth 30 points please help me
Finger [1]

Answer:

D. None of these

Step-by-step explanation:

this is a Equilateral triangle a triangle in where all three sides have the same length.

8 0
3 years ago
What is the equation of this trend line? Enter answers by filling in the box
evablogger [386]

Answer:

N= 110 M+ 55?

I'm just trying my best to help you

5 0
3 years ago
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