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lbvjy [14]
4 years ago
5

how much water should be mixed with 6 gallons of 55% solution of sulfuric acid to make a 20% solution of sulfuric acid

Mathematics
1 answer:
nevsk [136]4 years ago
6 0
Hello.

For all dilution problems use the dilution equation: 
<span>C1V1 = C2V2 </span>
<span>20*V1 = 6*55 </span>
<span>V1 = 6*55/20 </span>
<span>V1 = 16.5 gallons </span>
<span>The final volume must be 16.5 gallons </span>
<span>You must add 16.5 - 6 = 10.5 gallons water to be added.
</span>
Have a nice day
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Simplify the expression 11x − (2x2 + 8x).
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3x-2x^2
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4 years ago
Fill in the missing number in this newspaper report:
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3 years ago
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When the number is odd and a multiple of 3, the number that Ethan is thinking of is -9.

<h3>How to illustrate the number?</h3>

In mathematics, a multiple is the product of any quantity and an integer. It should be noted that, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer.

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7 0
2 years ago
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I believe there are 20 quarters and 3 nickels.....

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So your answer is 

There are 20 quarters and 3 nickels in the jar.

 
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