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tigry1 [53]
3 years ago
15

What is the value of z in the table? A 4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 L of an 8% s

olution. The table shows the amount of each solution used in the mixture.
Mathematics
2 answers:
Tresset [83]3 years ago
4 0

Answer:

87.1

Step-by-step explanation:

Lets say, first number = x


Second number = 3x+7


Total = 49



(x)+(3x+7)= 49


4x+7 = 49


4x = 42


x = 42/4


x= 10.5



x= 10.5


3x+7 = 3(10.5)+7 = 87.1



Hope this helps!!

Sergeeva-Olga [200]3 years ago
4 0

Answer:

I think it would be C. or if it has to be rounded then it would be D.

(someone comment if they know)

Step-by-step explanation:

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Read 2 more answers
The graph of a function f(x) passes through the following points:
Alex

The function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have:

The graph of a function f(x) passes through the following points: (0,2), (1, 0), (-1,0)

Let

f(x) = ax² + bx + c

Plug x = 0, and y = 2

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Plug x = 1 and y = 0

a + b + c = 0 ..(2)

Plug x = -1 and y = 0

a - b + c = 0  ...(3)

After solving (1), (2), and (3)

a = -2

b = 0

c = 2

f(x) = -2x² + 2

Thus, the function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

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2 years ago
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Answer: the 1 is > the one below it is < the one next to it unknown

and the one next to it is > and the last one is =

branliyist please

Step-by-step explanation:

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A customer states that she was shorted in change by receiving only 23 cents change from $3.00
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Answer:

First, I would check and see if she was correct. If she wasnt, I would simply show her why she was incorrect. If I was to accidently short her, I would give her the money and move on with my day. if she refused to leave after showing her that I gave her the correct amount of money, she would probably call for the manager. I'd get the manager, explain what happened, and the annoying customer would most likely get kicked out of the store.

(P.S: sorry if it was a little confusing lol)

8 0
3 years ago
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