brenyasanders4001

28.02.2020 • 

Mathematics

A pharmacy mixes different concentrations of saline solutions for its customers. The pharmacy has a supply of two concentrations, 0.4% and 4%. The function y=((100)(0.4)+x(0.004))/(100+x) gives the concentration of the saline solution after adding x milliliters of the 0..4% solution to 100 milliliters of the 4% solution. How many milliliters of the 0.4% solution must be added to the 4% solution to get a 0.85% solution?
Please answer soon it's timed

Ответ:

haileysolis5

19.01.2022

Mathematics

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8700

Step-by-step explanation:

(100)(0.4) + (x)(0.004) = (100+x)(0.0085)

40 + 0.004x = 0.85 + 0.0085x

0.0045x = 39.15

x = 8700

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Ответ:

ashtonbillups

25.04.2020

Mathematics

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1 1/4

Step-by-step explanation:

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