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Olegator [25]
3 years ago
14

Giving 5 stars

Mathematics
1 answer:
hram777 [196]3 years ago
6 0
The answer is choice B
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Doreen Schmidt is a chemist. She needs to prepare 28 ounces of a 8% hydrochloric acid solution. Find the amount of 14% solution
scZoUnD [109]

Let, amount of 14% solution required is x ounces.

So, amount of 8% solution will be ( 28 - x ) ounces.

Now, mathematical equation is :

\dfrac{14x}{100}+\dfrac{7(28-x)}{100}= \dfrac{8\times 28}{100}\\\\14x + 196  - 7x = 224\\\\7x = 28\\\\x = 4\ ounces

Therefore, amount of 14% solution and 8% solution required is 4 ounces and 24 ounces respectively.

Hence, this is the required solution.

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3 years ago
Amelia is building 3 square garden beds that are all the same size. She arranges them side-by-side to seperate the certain plant
bazaltina [42]

Answer:

3(s x s)

Step-by-step explanation:

You can find the area of each garden bed by multiplying the length of each square, and since a square has four equal sides, the area of one square would be s times s. S times s equals the area of ONE square, so you would take that area and multiply it by three, since you have three squares. Hope this helps!

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4 years ago
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Goryan [66]

Answer:

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3 years ago
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dangina [55]
1/5x-1/3y=-1
Geometric figure: Straight Line<span> 
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-3/4x+1/3y=12
</span>Geometric figure: Straight Line
<span>Slope = 4.500/2.000 = 2.250 
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3 years ago
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use speed distance and time mdthof

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2 years ago
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