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Semenov [28]
2 years ago
13

Select the statement that does not correctly use probability to describe an

Mathematics
1 answer:
tatuchka [14]2 years ago
7 0
I think its D since it’s known that if today is Tuesday tomorrow will be Thursday
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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
If f(x) = 2x + 3 and g(x) = −x + 6, use the graph to find the solution to the equation f(x) = g(x).
Veseljchak [2.6K]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the average temperature a b c or d
mihalych1998 [28]

Answer: b

Step-by-step explanation:

4 0
2 years ago
45.3297 rounded to the nearest tenth would be?
Alex
45.3297 rounded to the nearest tenth is 45.3
3 is in the tenths place, so you look at the number to the right of it. If that number is 5 or more, you round up. If the number is 4 or less, you round down. So you round 45.3297 down to 45.3
5 0
3 years ago
What's the answer to this question and how do I solve it?
Katyanochek1 [597]

Answer:

80 gummy bears are in 4 servings.

Step-by-step explanation:

2 servings=40 gummy bears

3 servings=60 gummy bears

<u>40</u>+20=<u>60</u>

Add 20 gummy bears for every serving.

5 servings=100 gummy bears

100-20=<u>80 gummy bears are in 4 servings</u>



OR you can also do:

40÷2=20 gummy bears are in each serving

So, 4x20=<u>80 gummy bears are in 4 servings</u>

7 0
2 years ago
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