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tigry1 [53]
4 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]4 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]4 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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Hayden uses 3 cups of water to make a broth for soup.He uses 3 times as many cups of milk how many fluid ounces of broth does ha
Novosadov [1.4K]

Answer:

6

Step-by-step explanation:

Hayden uses 3 cups of water to make a broth for soup

He uses 3 times as many cups of milk

Therefore the number of broth ounces made by Hayden can be calculated as follows

= 3+3

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8 0
3 years ago
What is the slope? helpppp?
EleoNora [17]

Answer:

slope: -(9/8)

y-intercept: 7

equation: y = -(9/8)x + 7

Step-by-step explanation:

Solve for the slope.

<em>m</em> (slope) = (y₂ - y₁)/(x₂ - x₁)

Let:

(x₁ , y₁) = (8 , -2)

(x₂ , y₂) = (0 , 7)

Plug in the corresponding numbers to the corresponding variables:

<em>m </em>= (7 - (-2))/(0 - 8)

<em>m</em> = (7 + 2)/(0 - 8)

<em>m</em> = 9/-8

Your slope is -(9/8)

Solve for the y-intercept. Plug in your slope into the slope intercept form:

y = mx + b

Let:

(x , y) = (0 , 7) & m = -(9/8)

Plug in the corresponding numbers to the corresponding variables:

7 = -(9/8)(0) + b

Simplify:

7 = (-9/8 * 0) + b

7 = (0) + b

b = 7

Your y-intercept is 7.

~

7 0
3 years ago
A small box measures 4 in.by 3in. by 3/4 in. high. Find the volume of the box
GalinKa [24]

Answer:

V=e^3

Step-by-step explanation:

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4 years ago
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omeli [17]

Answer:

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Step-by-step explanation:

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3 years ago
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