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3 years ago

How much of the 8% solution should we use to make 100g of a 3% solution?

Mathematics

1 answer:

kipiarov [429]3 years ago

3 0

Answer:

37.5 g

Step-by-step explanation:

The final solution will contain 3% × 100 g = 3 g of solute. This amount of solute will be found in w grams of 8% solution, where ...

... 3 = 0.08 × w

... 3/0.08 = w = 37.5 . . . . . grams of 8% solution

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SVETLANKA909090 [29]

It would be A
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3 years ago

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kari74 [83]

Answer: $\bold{y=\pm \dfrac{\sqrt{2(x+3)}}{4},\qquad x\neq -3}$

Step-by-step explanation:

y = 8x² - 3 (Restriction: none - x is All Real Numbers)

The inverse is when you swap the x's and y's and then solve for y

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Restriction:

The radical (inside the square root sign) cannot be negative

→ 2(x + 3) ≥ 0

x + 3 ≥ 0 divided both sides by 2

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4 0

3 years ago

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ddd [48]

Answer:
The last choice is the correct one

Explanation:
We can solve this question using "difference between squares" which has the following general rule:
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For the given question:
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Hope this helps :)

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Answer:

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers