A scientist has 400ml of a 8% solution. How much water needs to be added to lower it to a 2% solution?

1,200 ml of water must be added

Step-by-step explanation:

Let

x ----> the amount of water needed  in ml

we know that

In a 8% solution, the amount of water is 92%

so

In a 2% solution the amount of water must be 98%

so

solve for x

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

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step-by-step explanation:

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