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3 years ago

How many milliliters of a 5% bleach solution must be mixed with a 10% bleach solution to produce 900 mL of a 7% bleach solution

Mathematics

1 answer:

boyakko [2]3 years ago

5 0

Answer:

Step-by-step explanation:

If we use x ml of 2% bleach, then we use (600-x) ml of 20% solution.

Looking at the bleach concentrations:

.02x + .20(600-x) = .05(600)

Multiply through by 100 to clear the decimals

2x + 20(600-x) = 5(600)

2x + 12000 - 20x = 3000

-18x = 3000 - 12000

-18x = -9000

x = 500 ml of 2% bleach

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Complete Question

The complete question is shown on the first uploaded image

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Step-by-step explanation:

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3 years ago

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