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Kipish [7]
3 years ago
11

How do i do #3? I dont know how to do the whole problem.

Mathematics
1 answer:
lisov135 [29]3 years ago
3 0
You have to put the problem down we cant help you if its not there
sorry but please put equation in or problem
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How many ml of a 20% acid mixture and a 80% acid mixture should be mixed to get 120ml of a 35% acid mixture?
shutvik [7]

Answer:

Volume of Mixture A =90 ml

Volume of Mixture B =30 ml

Step-by-step explanation:

Let say, Mixture A + Mixture B = Mixture C

Volume of Mixture A is x

Volume of Mixture B is y

So, Volume of Mixture C is x+y = 120 ml

Now, Acid contain in Mixture A is 20% =0.2x

Acid contain in Mixture B is 80% =0.8y

Also, Acid contain in Mixture C is 35% =(0.35)(x+y) = 0.35×120=42

Now, we know that,

Acid contain of Mixture A + Acid contain of Mixture B=Acid contain of Mixture C

∴ 0.2x+0.8y=42

∴ 2x+8y=420

We get two linear equations

2x+8y=420 and x+y = 120

Solving above equation...

∴ x=120-y

Replacing x value in 2x+8y=420

∴ 2(120-y)+8y=420

∴ 240-2y+8y=420

∴ 6y=180

∴ y=30

Replacing y value in any equation

∴ x=120-y=120-30=90

∴ x=90

Thus,

Volume of Mixture A is x=90 ml

Volume of Mixture B is y=30 ml

3 0
3 years ago
I need help with my math
PolarNik [594]

Hello There!

The correct answer would be "B" this is because we are taking 6 and multiply it by our x column which is the "in" column and adding 1 to what we get.

8 0
3 years ago
Read 2 more answers
Easy question! <br><br>What is 6(4+2)?​
EleoNora [17]

Answer:

36

Step-by-step explanation:

6(4+2)

6(6)

36

3 0
3 years ago
Read 2 more answers
A hot air balloon is descending
Harlamova29_29 [7]

Answer:

54 3/4

Step-by-step explanation:

18*3=54

1/4*3=3/4

6 0
3 years ago
Domain of y=3secx/4 is
sladkih [1.3K]
Umm I didn't get a domain.... No solutions were found... 
3 0
3 years ago
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