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how much water should be added to 5 gallons of 50% acid solution to get a 20% solution?

thank you.

Sagot :

ajeigbeibraheem

The amount of water that should be added to 5 gallons of 50% acid to get 20% solution is 7.5 gallons.

Word problems in mathematics requires crucial understanding and mathematical knowledge to be able to solve real life cases.

From the information given:

  • Let consider (x) to be the amount of water to be added
  • 5 gallons of 50% acid solution will be = 5 × 0.5 = 2.5 gallons of acid in 50% solution.

∴

The amount of water to be added can computed by using the relation:

[tex]\mathbf{\dfrac{2.5}{x+5} = 20\%}[/tex]

[tex]\mathbf{2.5= 0.2(x+5)}[/tex]

2.5 = 0.2x + 1

2.5 - 1 = 0.2x

1.5 = 0.2x

x = 1.5/0.2

x = 7.5

Learn more about solving word problems here:

https://brainly.com/question/2610134?referrer=searchResults

Answer:

7.5

Step-by-step explanation:

I do RSM but I forgot how to do it.

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