:georgina wants to make a 42% citric acid solution. if she has 0.5 liters of water, how many liters of a 49% citric acid solution should she add?
a)1.5 liters
b)6 liters
c)3 liters
d)4.5 liters
e)9 liters

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Ответ:

bookworm43

03.01.2023

Mathematics

$\widehat {AC} =19.54\:ft$

Step-by-step explanation:

$\widehat {AC} = \frac{\theta}{360\degree} \times 2\pi r$

$\widehat {AC} = \frac{(180-40)\degree}{360\degree} \times 2(3.14) (8)$

$\widehat {AC} = \frac{140\degree}{360\degree} \times 2(3.14) (8)$

$\widehat {AC} = \frac{140}{360} \times 2(3.14) (8)$

$\widehat {AC} =19.5377778$

$\widehat {AC} =19.54\:ft$

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:georgina wants to make a 42% citric acid solution. if she has 0.5 liters of water, how many liters of a 49% citric acid solution should she add? a)1.5 liters b)6 liters c)3 liters d)4.5 liters e)9 liters